Suppose $\displaystyle f(x) = 2 \left( x + \frac{7}{8} \right)$ and $g(y)$ is inverse to $f(x)$.

(a) Find the composition $g(f(x)) =$ help (formulas)

(b) Find the composition $f(g(y)) =$ help (formulas)

(c) A formula for $x = g(y)$ is help (formulas)