Answer:
4
Step-by-step explanation:
g(f(h(0))) means
first find h(0)
h(0) = 2
then find f(h(0)) or in short we find f(2)
f(2) = 5
last we find g(5) which is 1
so g(f[h(0)]) = 1
now with the same way, wi can find the value
g(h[f(0)]) = 3
so
g(f[h(0)]) + g(h[f(0)]) = 1 + 3 = 4
