Answer
$f(x)=\frac{x+3}{4+x}$
$g(x)=-x^2$
Work Step by Step
$f(x)=\frac{x+3}{4+x}$
$g(x)=-x^2$
$(f~o~g)(x)=f(g(x))=f(-x^2)=\frac{-x^2+3}{4-x^2}=h(x)$
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