Can anyone with these (easy 21 points)

if f(x) = 2x and g(x) = 2x, then what is (g ° f)(x)? find f-1 (x) when f(x) = 2x + 6 = ?

find (f ° g)(x) when f(x) = 4x and g(x) = 6x + 6 =?

find (f ° g)(2) when f(x) = x + 4 and g(x) = 5x =?

find (f ° g)(x) when f(x) = 4x and g(x) = x + 1 = ?

find (f ° g)(x) when f(x) = -x - 3 and g(x) = -5x + 10 =?

if f(x)=2x + 3 and g(x)=5x-2, find (f ° g)(4) -?

if f(x)= x2 + 2 and g(x)= 2x-1, find (f ° g)(5) =?

find the inverse of the function f(x)= (x + 2)3 =?