Answer:
f(g(-3)) = 5
Step-by-step explanation:
To find f(g(x)) just plug in g(x) for x in f(x)
f(x)= x - 4
f(g(x)) = (6 - x) - 4
f(g(x)) = 6 - x - 4
f(g(x)) = 2 - x
Now to find f(g(-3)) we plug in -3 for x.
f(g(-3)) = 2 - (-3)
f(g(-3)) = 2 + 3
f(g(-3)) = 5
