QuestionSuppose that the amount, in grams, of plutonium present in a given sample is determined by the function $A(t)=3.00 e^{-0053 t}$, where $t$ is measured in years. Determine the amount present in the sample after the given number of years. (a) 5 (b) 20 (c) 30 (d) What was the initial amount present? (a) The amount of plutonium present in the sample after 5 years was approximately $\square$ grams. (Simplify your answer. Type an integer or decimal rounded to two decimal places as needed.)