Answer
See below.
Work Step by Step
a) $f(g(1))=f(0)=-1$
b) $f(g(-1))=f(0)=-1$
c) $g(f(-1))=g(-3)=8$
d) $g(f(0))=g(-1)=0$
e)$g(g(-2))=g(3)=8$
f) $f(f(-1))=f(-3)=-7$
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