Answer:
f(g(x)) = 5(3x + 5) = 15x + 25
g(f(x)) = 3(5x) + 5 = 15x + 5
Step-by-step explanation:
Since you didn't say what you were trying to find, I'll give you a couple things you may have been trying to find.
f(g(x)) = 5(3x + 5) = 15x + 25
g(f(x)) = 3(5x) + 5 = 15x + 5