Word Problems

Problem 8601

Find $c$ in a right triangle where $a=13$ and $b=12$ using the Pythagorean theorem.

See Solution

Problem 8602

Write the symbolic form of "You're here, but I'm not there" using $p$ and $q$ .

See Solution

Problem 8603

Find the third angle $z$ in a triangle if $x=41$ and $y=68$ .

See Solution

Problem 8604

Write the symbolic form of "I eat bananas or it is time to sleep" using $p$ and $q$ .

See Solution

Problem 8605

In a right triangle, if the side opposite the $30^\circ$ angle is $6$ , find the length of the side opposite the $60^\circ$ angle.

See Solution

Problem 8606

Write the compound statement "If this is a gorilla, then this is a mammal" in symbolic form using $p$ and $q$ .

See Solution

Problem 8607

Write the symbolic form of "I get a promotion if and only if I work hard" using $p$ and $q$ .

See Solution

Problem 8608

Write the symbolic form of: "It is not Sunday if and only if the campus is not closed." using $p$ and $q$ .

See Solution

Problem 8609

Symbolically express: If the chair is broken or not an octopus, then I get an A. Use $p$ , $q$ , and $r$ .

See Solution

Problem 8610

Symbolically represent: If the chair is broken or not an octopus, then I get an A.

See Solution

Problem 8611

Write the symbolic form of: "I get an A if and only if the job pays well and I do not work hard." Use $p$ , $q$ , and $r$ .

See Solution

Problem 8612

Symbolically express: "The chair is broken and it is time to sleep, or I get an A" using $p$ , $q$ , and $r$ .

See Solution

Problem 8613

Write the symbolic form of: Not having a job or not following a budget implies being in debt.

See Solution

Problem 8614

Find the position of the word RUSE among the permutations of SURE, numbered 1 to 24 in alphabetical order.

See Solution

Problem 8615

Sasha's 9-digit passcode starts and ends with 6. Each set of 3 consecutive digits sums to 14. Find the 5th digit.

See Solution

Problem 8616

Find the $y$ -intercept $b$ of the line through points $(6,10)$ and $(15,22)$ .

See Solution

Problem 8617

Find the fraction of the area shaded in a circle of radius 7, where smaller circles have radius $\frac{7}{5}$ .

See Solution

Problem 8618

Find the value of $k$ in the equation: $2 \cdot 4 \cdot 8 \cdot 5^6 = 10^{k}$ .

See Solution

Problem 8619

Find the area of a rectangle with a perimeter of 24 cm and length 3 times its breadth.

See Solution

Problem 8620

What fraction of customers ordered a hamburger over the last two days if 7/8 ordered yesterday and 2/4 today?

See Solution

Problem 8621

The perimeter of a square clock is $16 \frac{6}{9}$ in, and a rectangle's is $16 \frac{16}{18}$ in. Compare the perimeters.

See Solution

Problem 8622

Tushar's age is 7 times his daughter's. In 5 years, he'll be 4 times her age. Find their current ages.

See Solution

Problem 8623

Lalit studies 7 hours daily: $2 \frac{4}{5}$ hours for Math, $1 \frac{1}{4}$ for English. Find time for other subjects.

See Solution

Problem 8624

Garima's father is 43, 19 years older than twice her age. Set up and solve the equation: $43 = 2x + 19$ .

See Solution

Problem 8625

Determine the number of significant figures in the sum $8.520 + 2.7$ .

See Solution

Problem 8626

The average distance from Earth to the sun is $9.3 \times 10^{7}$ miles. Convert this to kilometers.

See Solution

Problem 8627

Convert 0.000053 to scientific notation.

See Solution

Problem 8628

True or False: The number 0.07010 has four significant figures.

See Solution

Problem 8629

How many cm³ of ore with $0.22\%$ gold is needed for \ $100 worth? Density is$ 8.0 \mathrm{~g/cm}^3$, gold is \$818/oz.

See Solution

Problem 8630

Convert the U.S. dime diameter of $18 \mathrm{~mm}$ to nanometers.

See Solution

Problem 8631

The average distance from Earth to the sun is $9.3 \times 10^{7}$ miles. Convert this to kilometers.

See Solution

Problem 8632

Convert 26.7 to scientific notation.

See Solution

Problem 8633

A metal piece of mass $611 \mathrm{~g}$ displaces water from $25.1 \mathrm{~mL}$ to $56.7 \mathrm{~mL}$ . Find its density.

See Solution

Problem 8634

A flask weighs $17.4916 \mathrm{~g}$ empty. With water, it weighs $43.9616 \mathrm{~g}$ . What is its mass with heavy water ( $1.1053 \mathrm{~g/mL}$ )?

See Solution

Problem 8635

Calculate the mass in pounds of 1.0 gallons of mercury given its density is $13.6 \mathrm{~g} / \mathrm{cm}^{3}$ .

See Solution

Problem 8636

Convert the U.S. dime diameter of $18 \mathrm{~mm}$ to nanometers.

See Solution

Problem 8637

Find the mass of a graphite block with the same volume as a $483 \mathrm{~g}$ iron block, given their densities.

See Solution

Problem 8638

Calculate the simple interest on ₹ 4000 at 10\% per annum for 3 months. Use the formula $I = P \cdot r \cdot t$ .

See Solution

Problem 8639

Identify hydrocarbon $\mathrm{Q}$ if burning $1.00 \mathrm{~g}$ produces $3.22 \mathrm{~g}$ of CO₂. Options: A) cyclohexene B) cyclopentane C) ethene D) pentane.

See Solution

Problem 8640

Factor the number 96 and list its prime factors in order.

See Solution

Problem 8641

Find the hyperbola equation with vertices at $(-3,-3)$ and $(7,-3)$ , and foci at $(-5,-3)$ and $(9,-3)$ .

See Solution

Problem 8642

Find the average car production rate if a factory makes 200 cars in 8 hours and 45 cars in 2 overtime hours.

See Solution

Problem 8643

Find the growth rate of corn if it is 1 m tall after 4 weeks and 1.8 m tall after 9 weeks. Options: A) 0.16 B) 0.31 C) 0.089 D) 6.25 E) 11.25.

See Solution

Problem 8644

A bushwalker walks $10 \mathrm{~km}$ in 2 hours, rests for 30 min, then walks $8 \mathrm{~km}$ in 2 hours. Find avg speed.

See Solution

Problem 8645

Find the number of sides $n$ in a polygon with exterior angles $65^{\circ}$ , $85^{\circ}$ , and remaining interior angles $150^{\circ}$ .

See Solution

Problem 8646

The bakery uses 1.75 cups of flour per batch. If 5.25 cups were used, how many batches were made and how many cookies are there?

See Solution

Problem 8647

Jason eats 10 ounces of candy in 5 days. Find his daily consumption in pounds and time to eat 1 pound.

See Solution

Problem 8648

Find the area of a rectangular bulletin board that is $1 \frac{1}{5} \mathrm{~m}$ wide and $2 \mathrm{~m}$ long.

See Solution

Problem 8649

Write the inequality: $6 \leq n + 3 \frac{1}{4}$ . Then solve for $n$ .

See Solution

Problem 8650

What is the probability of rolling a sum of 3 with two 12-sided dice in 5 out of 10 trials?

See Solution

Problem 8651

Convert the mixed number $6 \frac{3}{8}$ into an improper fraction.

See Solution

Problem 8652

Compare earnings per item sold: Lincoln School: $\$ 5$ for 4 boxes; Williams School: $\$ 7$ for 6 rolls.

See Solution

Problem 8653

Determine if the product of $-10.4 \times -78.2$ is positive (+) or negative (-).

See Solution

Problem 8654

Reyna needs to make 4 batches of punch using 12 ounces of orange juice each. How many quarts is that?

See Solution

Problem 8655

Multiply $-1 \frac{1}{6}$ by 7 and express the result as a mixed number.

See Solution

Problem 8656

Convert 4.20 grams of $\mathrm{SnO}_{2}$ to moles using its molar mass.

See Solution

Problem 8657

What fraction of cars in a lot are both gray and electric if $\frac{2}{5}$ are gray and $\frac{1}{3}$ of gray are electric?

See Solution

Problem 8658

Divide -72 by -4, then take that result and divide by -9. What is the final result?

See Solution

Problem 8659

Lake Segundo's depth is $\frac{5}{6}$ of Lake Profondo's 84 feet. What is Lake Segundo's elevation below sea level?

See Solution

Problem 8660

Calculate the number of moles of CS2 with a weight of 4.20 g and molar mass 76.13 g/mol using the formula:
Number of moles = $\frac{4.20 \, \text{g}}{76.13 \, \text{g/mol}}$ .

See Solution

Problem 8661

Convert 4.20 grams of $\mathrm{Ca}_{3} \mathrm{~N}_{2}$ to moles.

See Solution

Problem 8662

Convert 4.20 g of vitamin C ( $\mathrm{C}_{6} \mathrm{H}_{8} \mathrm{O}_{6}$ ) to moles.

See Solution

Problem 8663

Find the result of $842.4 \div -0.6$ .

See Solution

Problem 8664

Find the result of $100 \div (-10) \div 5$ .

See Solution

Problem 8665

A band around Earth is lengthened by 1 m. How far above the equator is it now? Use Earth's radius of 6400 km.

See Solution

Problem 8666

Find the result of the division $842.4 \div -0.6$ .

See Solution

Problem 8667

Convert 4.65 to a fraction in simplest form.

See Solution

Problem 8668

Convert the mixed number $2 \frac{7}{16}$ to a decimal using long division.

See Solution

Problem 8669

Convert $6 \frac{7}{15}$ to a decimal using long division.

See Solution

Problem 8670

A pilot descends 4,000 feet in 3.5 minutes. Find the rate of change in altitude to the nearest hundredth.

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Problem 8671

A fire engine's tank has 750 gallons. If 250 gallons are removed in 5 minutes, find the change in gallons per minute.

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Problem 8672

Find $k$ for which the line $y=-2x+3$ is tangent to the curve $f(x)=k x^{2}$ .

See Solution

Problem 8673

A fish starts at -10.8 m and descends 1.5 m every 2 min. How long to reach -37.8 m? Show your work and explain.

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Problem 8674

A plane flies from city A to city B, 2140 miles apart at 400 mph. Find the function $f(t)$ for distance from B at time $t$ .

See Solution

Problem 8675

Find a point that is $\sqrt{2}$ units from $(-1,5)$ .

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Problem 8676

A pretzel factory has daily costs of \ $2100 and 10 cents per bag. Each bag sells for \$1.70. Find the cost function$ c(x) $.$ $c(x) = 2100 + 0.10x$ $

See Solution

Problem 8677

Find the average rate of change of $f(x)$ from $x_{1}=-3$ to $x_{2}=8.5$ for $f(x)=7x-8$ . Round to the nearest hundredth.

See Solution

Problem 8678

Find a point $(x, y)$ that is between 50 and 60 units from $(7, -2)$ using the distance formula: $\sqrt{(x-7)^2 + (y+2)^2}$ .

See Solution

Problem 8679

Classify the following matter types: hot coffee, salt water, aluminum, gold, orange juice with pulp, magnesium, carbon dioxide, air, sugar, toluene, soil.

See Solution

Problem 8680

Find $k$ so that the line $y=2x+k$ goes through the minimum point of the curve $y=3x^2+12x+13$ .

See Solution

Problem 8681

Find the average rate of change of $f(x)$ from $x_{1}=2$ to $x_{2}=4$ for $f(x)=\sqrt{3x+1}$ , rounded to the nearest hundredth.

See Solution

Problem 8682

Find values of $x$ for which the volume of a prism is $\geq 500$ cubic units, given width $= x - 5$ and height $= 2x$ .

See Solution

Problem 8683

Mary bought a \$30,000 boat with a \$2,000 down payment. What happened to her assets and liabilities? A) Both decreased B) Both increased C) Assets decreased, liabilities increased D) Assets increased, liabilities decreased. Choose the best answer.

See Solution

Problem 8684

Find possible lengths for a garden with 80 ft of fencing, area > 400 sq ft and < 600 sq ft. Options are: $(0,10) \cup(30,40)$ , $(20-10 \sqrt{2}, 20+10 \sqrt{2})$ , $(0,20-10 \sqrt{2}) \cup(20+10 \sqrt{2}, 40)$ , $(20-10 \sqrt{2}, 10) \cup(30,20+10 \sqrt{2})$ .

See Solution

Problem 8685

What type of asset is money in a retirement fund? a. investment asset b. liquid asset c. long term asset d. use asset. Select the best answer.

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Problem 8686

Find the length of segment $\overline{F G}$ given $F H=5 x+2$ , $G H=5 x-9$ , and $F G=x+5$ .

See Solution

Problem 8687

Classify these as pure substances or mixtures: 1. baking soda (NaHCO₃), 2. blueberry muffin, 3. ice (H₂O), 4. zinc (Zn), 5. Trimix (O₂, N₂, He).

See Solution

Problem 8688

Find the length of $\overline{R S}$ given $Q S=5 x-2$ , $Q R=3 x-6$ , and $R S=4 x-2$ .

See Solution

Problem 8689

Find the length of segment $\overline{A C}$ given $A B=2 x+10$ , $B C=x$ , and $A C=5 x$ .

See Solution

Problem 8690

Mikah buys a TV for \$1,600 valued at \$1,800 with a \$300 down payment. How much did his assets increase? A, B, C, or D?

See Solution

Problem 8691

Find the average rate of change of $f(x)=6x+9$ from $x_1=3.5$ to $x_2=9$ , rounded to the nearest whole number.

See Solution

Problem 8692

Find $K L$ if points $K, L, M, N$ are in the ratio $3:1:1$ and $K N=20$ .

See Solution

Problem 8693

Classify these substances as elements or compounds: 1. silicon (Si), 2. oxygen ( $\mathrm{O}_{2}$ ), 3. hydrogen peroxide ( $\mathrm{H}_{2} \mathrm{O}_{2}$ ), 4. rust ( $\mathrm{Fe}_{2} \mathrm{O}_{3}$ ), 5. methane ( $\mathrm{CH}_{4}$ ).

See Solution

Problem 8694

Find $QR$ if points $P, Q, R, S$ are on a line with $PQ:QR:RS = 3:1:2$ and $PS = 18$ .

See Solution

Problem 8695

Maximize area with 480 ft of fencing for a lot bordered by a highway. What are the optimal dimensions?

See Solution

Problem 8696

Find the average rate of change of $f(x)$ from $x_{1}=-9$ to $x_{2}=-1$ , rounded to the nearest hundred. $f(x)=\sqrt{-8 x+6}$

See Solution

Problem 8697

Find the density of an object with mass $15 \mathrm{~g}$ and volume $5 \mathrm{~cm}^{3}$ . Include the unit.

See Solution

Problem 8698

Classify these mixtures as homogeneous or heterogeneous: 1. vegetable soup 2. tea 3. tea with ice and lemon 4. seawater 5. fruit salad.

See Solution

Problem 8699

Classify lemon-flavored water as a homogeneous or heterogeneous mixture.

See Solution

Problem 8700

Convert $1.55 \times 10^{-5}$ grams to milligrams.

See Solution

1 ...84 85 86 87 88 89 90 ...101

Word Problems

Problem 8601

Find ccc in a right triangle where a=13a=13a=13 and b=12b=12b=12 using the Pythagorean theorem.

Problem 8602

Write the symbolic form of "You're here, but I'm not there" using ppp and qqq.

Problem 8603

Find the third angle zzz in a triangle if x=41x=41x=41 and y=68y=68y=68.

Problem 8604

Write the symbolic form of "I eat bananas or it is time to sleep" using ppp and qqq.

Problem 8605

In a right triangle, if the side opposite the 30∘30^\circ30∘ angle is 666, find the length of the side opposite the 60∘60^\circ60∘ angle.

Problem 8606

Write the compound statement "If this is a gorilla, then this is a mammal" in symbolic form using ppp and qqq.

Problem 8607

Write the symbolic form of "I get a promotion if and only if I work hard" using ppp and qqq.

Problem 8608

Write the symbolic form of: "It is not Sunday if and only if the campus is not closed." using ppp and qqq.

Problem 8609

Symbolically express: If the chair is broken or not an octopus, then I get an A. Use ppp, qqq, and rrr.

Problem 8610

Symbolically represent: If the chair is broken or not an octopus, then I get an A.

Problem 8611

Write the symbolic form of: "I get an A if and only if the job pays well and I do not work hard." Use ppp, qqq, and rrr.

Problem 8612

Symbolically express: "The chair is broken and it is time to sleep, or I get an A" using ppp, qqq, and rrr.

Problem 8613

Write the symbolic form of: Not having a job or not following a budget implies being in debt.

Problem 8614

Find the position of the word RUSE among the permutations of SURE, numbered 1 to 24 in alphabetical order.

Problem 8615

Sasha's 9-digit passcode starts and ends with 6. Each set of 3 consecutive digits sums to 14. Find the 5th digit.

Problem 8616

Find the yyy-intercept bbb of the line through points (6,10)(6,10)(6,10) and (15,22)(15,22)(15,22).

Problem 8617

Find the fraction of the area shaded in a circle of radius 7, where smaller circles have radius 75\frac{7}{5}57​.

Problem 8618

Find the value of kkk in the equation: 2⋅4⋅8⋅56=10k2 \cdot 4 \cdot 8 \cdot 5^6 = 10^{k}2⋅4⋅8⋅56=10k.

Problem 8619

Find the area of a rectangle with a perimeter of 24 cm and length 3 times its breadth.

Problem 8620

What fraction of customers ordered a hamburger over the last two days if 7/8 ordered yesterday and 2/4 today?

Problem 8621

The perimeter of a square clock is 166916 \frac{6}{9}1696​ in, and a rectangle's is 16161816 \frac{16}{18}161816​ in. Compare the perimeters.

Problem 8622

Tushar's age is 7 times his daughter's. In 5 years, he'll be 4 times her age. Find their current ages.

Problem 8623

Lalit studies 7 hours daily: 2452 \frac{4}{5}254​ hours for Math, 1141 \frac{1}{4}141​ for English. Find time for other subjects.

Problem 8624

Garima's father is 43, 19 years older than twice her age. Set up and solve the equation: 43=2x+1943 = 2x + 1943=2x+19.

Problem 8625

Determine the number of significant figures in the sum 8.520+2.78.520 + 2.78.520+2.7.

Problem 8626

The average distance from Earth to the sun is 9.3×1079.3 \times 10^{7}9.3×107 miles. Convert this to kilometers.

Problem 8627

Convert 0.000053 to scientific notation.

Problem 8628

True or False: The number 0.07010 has four significant figures.

Problem 8629

How many cm³ of ore with 0.22%0.22\%0.22% gold is needed for \100worth?Densityis100 worth? Density is 100worth?Densityis8.0 \mathrm{~g/cm}^3$, gold is \$818/oz.

Problem 8630

Convert the U.S. dime diameter of 18 mm18 \mathrm{~mm}18 mm to nanometers.

Problem 8631

The average distance from Earth to the sun is 9.3×1079.3 \times 10^{7}9.3×107 miles. Convert this to kilometers.

Problem 8632

Convert 26.7 to scientific notation.

Problem 8633

A metal piece of mass 611 g611 \mathrm{~g}611 g displaces water from 25.1 mL25.1 \mathrm{~mL}25.1 mL to 56.7 mL56.7 \mathrm{~mL}56.7 mL. Find its density.

Problem 8634

A flask weighs 17.4916 g17.4916 \mathrm{~g}17.4916 g empty. With water, it weighs 43.9616 g43.9616 \mathrm{~g}43.9616 g. What is its mass with heavy water (1.1053 g/mL1.1053 \mathrm{~g/mL}1.1053 g/mL)?

Problem 8635

Calculate the mass in pounds of 1.0 gallons of mercury given its density is 13.6 g/cm313.6 \mathrm{~g} / \mathrm{cm}^{3}13.6 g/cm3.

Problem 8636

Convert the U.S. dime diameter of 18 mm18 \mathrm{~mm}18 mm to nanometers.

Problem 8637

Find the mass of a graphite block with the same volume as a 483 g483 \mathrm{~g}483 g iron block, given their densities.

Problem 8638

Calculate the simple interest on ₹ 4000 at 10\% per annum for 3 months. Use the formula I=P⋅r⋅tI = P \cdot r \cdot tI=P⋅r⋅t.

Problem 8639

Identify hydrocarbon Q\mathrm{Q}Q if burning 1.00 g1.00 \mathrm{~g}1.00 g produces 3.22 g3.22 \mathrm{~g}3.22 g of CO₂. Options: A) cyclohexene B) cyclopentane C) ethene D) pentane.

Problem 8640

Find $c$ in a right triangle where $a=13$ and $b=12$ using the Pythagorean theorem.

Write the symbolic form of "You're here, but I'm not there" using $p$ and $q$ .

Find the third angle $z$ in a triangle if $x=41$ and $y=68$ .

Write the symbolic form of "I eat bananas or it is time to sleep" using $p$ and $q$ .

In a right triangle, if the side opposite the $30^\circ$ angle is $6$ , find the length of the side opposite the $60^\circ$ angle.

Write the compound statement "If this is a gorilla, then this is a mammal" in symbolic form using $p$ and $q$ .

Write the symbolic form of "I get a promotion if and only if I work hard" using $p$ and $q$ .

Write the symbolic form of: "It is not Sunday if and only if the campus is not closed." using $p$ and $q$ .

Symbolically express: If the chair is broken or not an octopus, then I get an A. Use $p$ , $q$ , and $r$ .

Write the symbolic form of: "I get an A if and only if the job pays well and I do not work hard." Use $p$ , $q$ , and $r$ .

Symbolically express: "The chair is broken and it is time to sleep, or I get an A" using $p$ , $q$ , and $r$ .

Find the $y$ -intercept $b$ of the line through points $(6,10)$ and $(15,22)$ .

Find the fraction of the area shaded in a circle of radius 7, where smaller circles have radius $\frac{7}{5}$ .

Find the value of $k$ in the equation: $2 \cdot 4 \cdot 8 \cdot 5^6 = 10^{k}$ .

The perimeter of a square clock is $16 \frac{6}{9}$ in, and a rectangle's is $16 \frac{16}{18}$ in. Compare the perimeters.

Lalit studies 7 hours daily: $2 \frac{4}{5}$ hours for Math, $1 \frac{1}{4}$ for English. Find time for other subjects.

Garima's father is 43, 19 years older than twice her age. Set up and solve the equation: $43 = 2x + 19$ .

Determine the number of significant figures in the sum $8.520 + 2.7$ .

The average distance from Earth to the sun is $9.3 \times 10^{7}$ miles. Convert this to kilometers.

How many cm³ of ore with $0.22\%$ gold is needed for \ $100 worth? Density is$ 8.0 \mathrm{~g/cm}^3$, gold is \$818/oz.

Convert the U.S. dime diameter of $18 \mathrm{~mm}$ to nanometers.

The average distance from Earth to the sun is $9.3 \times 10^{7}$ miles. Convert this to kilometers.

A metal piece of mass $611 \mathrm{~g}$ displaces water from $25.1 \mathrm{~mL}$ to $56.7 \mathrm{~mL}$ . Find its density.

A flask weighs $17.4916 \mathrm{~g}$ empty. With water, it weighs $43.9616 \mathrm{~g}$ . What is its mass with heavy water ( $1.1053 \mathrm{~g/mL}$ )?

Calculate the mass in pounds of 1.0 gallons of mercury given its density is $13.6 \mathrm{~g} / \mathrm{cm}^{3}$ .

Convert the U.S. dime diameter of $18 \mathrm{~mm}$ to nanometers.

Find the mass of a graphite block with the same volume as a $483 \mathrm{~g}$ iron block, given their densities.

Calculate the simple interest on ₹ 4000 at 10\% per annum for 3 months. Use the formula $I = P \cdot r \cdot t$ .

Identify hydrocarbon $\mathrm{Q}$ if burning $1.00 \mathrm{~g}$ produces $3.22 \mathrm{~g}$ of CO₂. Options: A) cyclohexene B) cyclopentane C) ethene D) pentane.

Find the hyperbola equation with vertices at $(-3,-3)$ and $(7,-3)$ , and foci at $(-5,-3)$ and $(9,-3)$ .

A bushwalker walks $10 \mathrm{~km}$ in 2 hours, rests for 30 min, then walks $8 \mathrm{~km}$ in 2 hours. Find avg speed.

Find the number of sides $n$ in a polygon with exterior angles $65^{\circ}$ , $85^{\circ}$ , and remaining interior angles $150^{\circ}$ .

Find the area of a rectangular bulletin board that is $1 \frac{1}{5} \mathrm{~m}$ wide and $2 \mathrm{~m}$ long.

Write the inequality: $6 \leq n + 3 \frac{1}{4}$ . Then solve for $n$ .

Convert the mixed number $6 \frac{3}{8}$ into an improper fraction.

Compare earnings per item sold: Lincoln School: $\$ 5$ for 4 boxes; Williams School: $\$ 7$ for 6 rolls.

Determine if the product of $-10.4 \times -78.2$ is positive (+) or negative (-).

Multiply $-1 \frac{1}{6}$ by 7 and express the result as a mixed number.

Convert 4.20 grams of $\mathrm{SnO}_{2}$ to moles using its molar mass.

What fraction of cars in a lot are both gray and electric if $\frac{2}{5}$ are gray and $\frac{1}{3}$ of gray are electric?

Lake Segundo's depth is $\frac{5}{6}$ of Lake Profondo's 84 feet. What is Lake Segundo's elevation below sea level?

Calculate the number of moles of CS2 with a weight of 4.20 g and molar mass 76.13 g/mol using the formula:
Number of moles = $\frac{4.20 \, \text{g}}{76.13 \, \text{g/mol}}$ .

Convert 4.20 grams of $\mathrm{Ca}_{3} \mathrm{~N}_{2}$ to moles.

Convert 4.20 g of vitamin C ( $\mathrm{C}_{6} \mathrm{H}_{8} \mathrm{O}_{6}$ ) to moles.

Find the result of $842.4 \div -0.6$ .

Find the result of $100 \div (-10) \div 5$ .

Find the result of the division $842.4 \div -0.6$ .

Convert the mixed number $2 \frac{7}{16}$ to a decimal using long division.

Convert $6 \frac{7}{15}$ to a decimal using long division.

Find $k$ for which the line $y=-2x+3$ is tangent to the curve $f(x)=k x^{2}$ .

A plane flies from city A to city B, 2140 miles apart at 400 mph. Find the function $f(t)$ for distance from B at time $t$ .