i read dont understand

i read dont understand

Suppose that 

f(2) = −5, g(2) = 3, f ‘(2) = −4, and g'(2) = 1.

 Find 

h'(2).


a. h(x) = 4f(x) − 3g(x)

h'(2) =


b. h(x) = f(x)g(x)


h'(2) =


c. h(
x) = f(x)/g(x)

d.

h(x) =g(x)/1+f(x)