QuestionWhat is the cost of the tennis balls after applying a discount of $y$ percent? Options: $20+15+12$, $12(1-y)$, $20(1-x)$, 12.

Studdy Solution
The term $(1-y)12$ represents the price of the set of tennis balls after the coupon was applied directly to them.So, the price of the set of tennis balls after a coupon was applied directly to them is $12(1-y)$.