Question 1200531
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There are too many possible interpretations of h(x) to make it worthwhile to spend any time trying to answer this for you.<br>
Is "√x+3" {{{sqrt(x)=3}}} or {{{sqrt(x+3)}}}?<br>
Is "1/3x + 9" {{{1/3x+9}}} or {{{1/(3x+9)}}}?<br>
Re-post, making proper use of parentheses....<br>
Note that if (f o g)(x)= h(x) then one possible "solution" is g(x) = h(x) and f(x) = x.  (g(x) "does the whole thing" and f(x) leaves it unchanged.)<br>
But I'm sure you are expected to come up with a more interesting (and educational) answer.<br>