Answer:
B
Step-by-step explanation:
this is really not complicated.
the input value is the value of x.
so, just put that value into the equations and simply calculate.
f(2) = 6×2 + 3 = 15
g(-9) = 3×-9 - 2 = -29
15 + -29 = 15 - 29 = -14
