When one function is written inside another function’s parentheses, apply the
inside function first:
Then apply the outside function to the result:
The answer is (C).
Notice that there’s a difference between f(g(2)) and g(f(2)). In the latter, you’re
to apply the function f first and then the function g to the result. The order
makes a difference: f(g(2))≈1.68, but g(f(2))≈2.45 (which is, of course, included
in the answer choices as a distractor).