f For the functions f(x) = 6-x and g(x) = x+4x-60, find f+g, f-g, fg, and -. Determine the domain for each function. g What is the domain of fg? Select the correct choice below and, if necessary, fill in the answer box to complete your choice. OA. The domain of fg is. (Use a comma to separate answers as needed.) B. The domain of fg is . (Type your answer in interval notation.) OC. The domain of fg is 0. (H)(x) = (Simplify your answer.) f What is the domain of -? Select the correct choice below and, if necessary, fill in the answer box to complete your choice. g A. The domain of is. f g B. (Use a comma to separate answers as needed.)