Find the indicated derivative If f(x) = x^3 , find f’(-4)

Which one ? is the answer and how to find this answer

If a is a nonzero real number then the reciprocal of a is

The equation represents the function f, and the graph represents the function g. f(x)=3(5/2)^x determine the relationship between the growth factors of f and g. a. the growth factor of g is twice the growth factor of f. b. the growth factor of f is twice the growth factor of g. c. the growth factor of f is 2.5 times the growth factor of g. d. the growth factor of f is the same as the growth factor of g.