A profit formula for a single tire can be modeled by the function P(t) = –18t2 + 850t – 725. Each set of tires can be modeled by the function t(s) = 4s. Which composite function can be used to determine the profit function in terms of the number of sets of tires?

Substitute t = 4s into the tire profit function: P(4s) = −18(4s)² + 850(4s) − 725. Since (4s)² = 16s², this simplifies to −288s² + 3,400s − 725. Therefore, choice A gives the profit in terms of the number of sets of tires.

AI-written and checked against the verified answer.