hi can someone help me?

1) Let f(x) = 2x + 3 and g(x) = x3 + 4x + 3. a) Find and simplify (go f(x). b) Find f-(x) and show that the function you found is indeed the inverse of f(x). 2c + 3 4r 2) Let f(x) = 3x - 5: 9(x) = 3x - 2' h(x) = v3x - 12, F(x) = 3r + 4, G(x) = 2x - 3 a) Find the domain of h(x). b) Find the function (F + G)(x) and its domain. c) Find the function -(x) and its domain. 9