**Hint for process of elimination: **$latex f(g(6)) $ is a composition of functions, not an addition, subtraction, multiplication, nor division.

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**Answer: **E

**Solution: **The notation $latex f(g(6)) $ is a the composition of functions. $latex g(6) = -3 $, so $latex f(g(6)) = f(-3) $, which was never defined in this problem.