Question

What’s the answer please help

Answer 1

16

Explanation:

(g o f) just means put f(x) where the x would be in g(x)

in this case, g(x) = 5x - 4
(g o f) would be (g o f) = 5(4) - 4

Solving this would give you 16 as the answer:

(g o f) = 5(4) - 4

(g o f) = 20 - 4

(g o f) = 16