Solve: fog(x) and also find domain of fog(x) where f(x) = 3x -2; g(x) = √x

3√x +2; Domain: [0, ∞)

3√x -2; Domain: [0, ∞)

3x -2; Domain: (-∞, ∞)

√(3x -2); Domain: [0, ∞)