Could someone help me with this problem?

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.

Find the quotient. 50a2 – 98b2 -5a +7b

What is the equation of a line passing through the point (6,1) and parallel to the line whose equation 3x=2y+4