Answer:
94
Step-by-step explanation:
Given f(g(-5)) means that you take the number, -5, and substitute it into g(x) first. The answer provided from that equation will then be the number to be substituted in f(x).
x^2 + 4
-5^2 + 4
25 + 4 [It's positive because -5 x -5 cancels out to make a positive]
29 = g(x), therefore, this is the new number to be substituted for f(x)
3x + 7
3 (29) + 7
87 + 7 [to get 87, multiply 3 by 29]
94
Therefore, your final answer is 94.
Hope this helps!
