Please answer ASAP I need halp.

The table represents a function f(x). what is f(3)? a.-9 b.-1 c.1 d.9

If f(x) = 2x + 8 and g(x) = x4, what is (gº)?

Evaluate the function , when d = {9, 15, 30}. r = {5, 7, 12} r = {6, 10, 15} r = {6, 10, 20} r = {5, 12, 20}