thanks for helping! this is precalc btw.

25-36 - Use the Inverse Function Property to show that f and g are inverses of each other. x+2 2x + 2 35. f(x) x - 2; 9(x) x-137-60 _ Find the inverse function of f. 2x + 5 47. f(x) = x - 7 57. f(x) = 1+ V1+x84. Demand Function The amount of a commodity that is sold is called the demand for the commodity. The demand D for a certain commodity is a function of the price given by D(p) = -3p + 150 (a) Find D . What does D represent? (b) Find D '(30). What does your answer represent