Calculate in farms value gross value added at market price in 75 lakhs​

F(x)= 1/x-4, g(x)=4x+1/x a. use composition to prove whether or not the functions are inverses of each other. b. express the domain of the compositions using interval notation.

For f(x)=2x+1 and g(x)= x^2 -7, find (f•g)(x)

If f(x)=x+7 and g(x)=1/x what is (fog)(x)