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
<span />x=base price
x/10=major options package
x/50=destination charge
x+x/10+x/50=24,416
x=21,800