Question

I need help answering this

Answer 1

r(x) = 12x

c(x) = 5x+20

p(x) = r(x) - c(x)

replace r(x) and c(x) with the equations:

p(x) = 12x-5x+20

12x-5x = 7x so:

p(x) = 7x+20

The answer is A.