Question

The revenue from selling x shirts is r(x) = 15x.

The cost of buying x shirts is c(x) = 7x + 20.

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

What is p(x)?


p(x) = 8x – 20


p(x) = 22x – 20


p(x) = 8x + 20


p(x) = 22x + 20

Answer 1

p(x) = 15x − (7x + 20) = 15x − 7x − 20 = 8x − 20. So p(x) = 8x − 20.