Use the price-demand function below, to answer parts (A), (B), and (C). p(x) =75 -3x 1 Sx$ 20 R(x) = 75x - 3x2 What is the domain of the revenue function? O A. [0,20] O B. [0,75] O C. [0,468] D. [1,20] (B) Complete the table. Revenue Revenue x (Millions) R(x) (Millions $) 1 72 4 8 12 16