Step-by-step explanation:
A.

Every number to the power of 0 gives us 1

B.

1 to the any power gives us 1.

Asked to find h(4). Hence, we don not need f(x) and g(x).
Substitute x=4 in h(x).
so, h(4) = 7*(4)^2 - 8 => 112 - 8 => 104
hope it helps.
It's Wrong Because 7 Isn't The GCF Between 3 & 4 Plus You Can't Add The Denominator If It's Not The Same Number
The answer would be g(x)=(x-4)/3