Answer:
f(g(x)) = 9x + 1
Explanation:
f(x) is defined as 3x + 1. To find f(g(x)), substitute g(x) = 3x for x in f(x):
f(g(x)) = 3(g(x)) + 1 = 3(3x) + 1 = 9x + 1
or:
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