Answer
a) -1; b) -1; c) 8; d) 0; e) 8; f) -7
Work Step by Step
a) $(f\circ g)(1)=f(g(1))=f(0)=-1$
b) $(f\circ g)(-1)=f(g(-1))=f(0)=-1$
c) $(g\circ f)(-1)=g(f(-1))=g(-3)=8$
d) $(g\circ f)(0)=g(f(0))=g(-1)=0$
e) $(g\circ g)(-2)=g(g(-2))=g(3)=8$
f) $(f\circ f)(-1)=f(f(-1))=f(-3)=-7$
