Question

May someone please help me with these two questions:
1). Find f(x) and g(x) so that the function can be described as y = f(g(x)). y= (8)/(x^2) + 2.

2). Confirm that f and g are inverses by showing that f(g(x)) = x and g(f(x)) = x. f(x)=(x+4)/(6) and g(x) = 6x-4.
The help will be very much appreciated, I am honestly suck.