The revenue from selling x shirts is r(x)=12x. The cost of buying x shirt is c(x)= 5x+20.

The profit from selling c shirts is p(x)= r(x) - c(x)

What is p(x)?

p(x) = 7x - 20

Step-by-step explanation:

A company makes a profit selling goods when the revenue taken in from the sales is greater than the cost of those goods:  p(x) = r(x) - c(x) > 0.

In this case the revenue function is r(x) = 12x; the cost function is c(x) = 5x + 20, and the profit function is p(x) = 12x - (5x + 20), or:

p(x) = 12x - 5x - 20, or

p(x) = 7x - 20

its definatley   this on your answer choice?

stops on an even number.