Answer:
6
Step-by-step explanation:
f (x)=x^2and g(x)=x+6 (I will assume you meant x not c)
The first step if to find f(0)
f(0) = 0^2 = 0
Now we find g(f(0))= g(0)
g(0) = 0+6 = 6
g(f(0) =6
If you meant c
Then g(f(0) = c+6
