F(g(x)) = f(x-4) = (x-4)
g(f(x)) = g(x) = x-4
All you need to do is add 3.7 to the other side and since you don't need to divide anything from y, whatever you get will be your final answer. :)
6^5 = 6 x 6 x 6 x 6 x 6 = 7776
(6.50 * 7) + (4.90 * 6)
45.50 + 29.40 = 74.90
He will earn $74.90
