What are the answer choices
gives an average cost per unit, if we want to produce x of them.
So for example, we want to produce 500 toy cars for our store, and we need a price per unit (per 1 toy car). What we do is we calculate C(500).
So to calculate the cost of one unit when producing 1250, we calculate C(1250)

$ is the cost of 1 toy car.
Answer
75% = 0.75
750 people / 0.75 = 1,000 people
There were 1,000 total people attending the game