Answer:
-17
Step-by-step explanation:
Plug in -2 as your x value for the g(x) equation and simplify.
[tex]g(-2)=\sqrt{-2+6} \\g(-2)=\sqrt{4} \\g(-2)=2[/tex]
Next, plug in your g(x) value (2) to the f(x) equation for x and simplify.
[tex]f(2)=-7(2)-3\\f(2)=-14-3\\f(2)=-17[/tex]
