Answer:
13
Step-by-step explanation:
put equal g into f then solve then put x=4 then solve again
g(x) = 2x - 3
g(4) = 2(4) - 3 = 5
(fog)(x) = f(g(x)) = f(g(4))
= 4(5) - 7
= 20 - 7
= 13
