Answer:
the correct answer is x = 2

It looks like your first selection (a) is appropriate.
Answer:
13x10^15
Step-by-step explanation:
8+5 = 13
6+9 = 15
Answer:
(g ○ f )(x)
Step-by-step explanation:
(g ○ f )(x) means substitute f(x) into g(x) , that is
g(
)
=
+ 5