The average cost per unit c(x), in dollars, to produce x units of toy cars is given by c(x)=(8000)/(x−50)c(x)=(8000)/(x−50 ). what is the approximate cost per unit when 1250 toy cars are produced?

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

7.666270253x10 raised to the 18th power

Understanding what? lol