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)?

A. p(x) = 22x – 20
B. p(x) = 22x + 20
C. p(x) = 8x – 20
D. p(x) = 8x + 20

1 answer

p(x) = r(x) - c(x)
p(x) = 15x - (7x + 20)
p(x) = 15x - 7x - 20
p(x) = 8x - 20

Therefore, the correct answer is:

C. p(x) = 8x - 20
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