Consider the functions f(x) = x + 3, g(x) = x² - 2x - 9, and h(x) = 3x - 4 to answer rhe following questions.

A) Find f(6)
B) Find h(9)
C) Find g(-2)
D) Find f(x) + g(x)
E) Find f(x) + h(x)
F) Find g(x) - h(x)​