Question 1140245
Form the composition and let the input variable be 2, and then evaluate.

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{{{h(g(2))}}}
The input to g is 2.
The input to h is g(2).



{{{g(2)=(2+4)^2}}}
{{{g(2)=6^2}}}
{{{g(2)=36}}}



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{{{h(36)=2*36-7}}}
{{{h(36)=72-7}}}
{{{h(36)=highlight(65)}}}


summary:  {{{h(g(2))=65}}}


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The functions can just as well be stated  g(x)=(x+4)^2 and h(x)=2x-7.
The composite h(g(x)) would be  {{{2((x+4)^2)-7}}}
{{{2(x^2+8x+16)-7}}}
{{{2x^2+16x+32-7}}}
{{{highlight_green(2x^2+16x+25)}}}
but it may be easier if handled as  {{{highlight_green(2((x+4)^2)-7)}}}.