Use the given graphs of ff and gg to evaluate each expression
(a) f(g(2))f(g(2))
(b) g(f(0))g(f(0))
(c) (f∘g)(0)(f∘g)(0)
(d) (g∘f)(6)(g∘f)(6)
(e) (g∘g)(−2)(g∘g)(−2)
(f) (f∘f)(4)