Answer
Answers may vary, a possible solution set is:
$f(x)=x+2$
$g(x)=\sqrt{x+5}$
Work Step by Step
$f(g(x))=\sqrt{x+5}+2$ which is $g(x)+2$
Therefore, there are multiple solutions.
Two possible solutions are:
$g(x)=\sqrt{x+5}$
and $f(x)=x+2$