Use these three functions to find each value:
f (x) = -2x + 7
g(x) = x2 - 2
h(x) = (x + 1)2
a. f(4)
b. g(-3)
c. h(x + 2) - 3
d. f (g(3))
e. g(h(-2))
f. h( f (-1))
g. f (g(a))
h. g( f (a))
i. h( f (a))