The functions f and g are defined as f(x) = 6x + 7 and g(x) = 1 - 2x. f a) Find the domain of f, g, f+g, f-g, fg, ff, and b) Find (f+g)(x), (f-g)(x), (fg)(x), (ff)(x), g " g f H (x), Aox). and 90x (x). I he domain of It is (-00,00). (Type your answer in interval notation.) The domain of (5) () 10 (-001) ~ (2000). is 8 (Type your answer in interval notation.) The domain of (x) is . (Type your answer in interval notation.)