Answer
125
Work Step by Step
We are given that $f(x)=x^{2}+4$, $g(x)=2x+3$, and $h(x)=x-5$.
We are asked to find $(f∘g)(4)$. We know that $(f∘g)(x)=f(g(x))$.
Therefore, $(f∘g)(4)=f(g(4))=f(2(4)+3)=f(8+3)=f(11)=11^{2}+4=121+4=125$.
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