Suppose the domestic supply (Q S ) and demand (Q D )for MP3 players in the United States are given by the following set of equations: Q S = –25 + 10P Q D = 875 – 5P In the absence of international trade in MP3 players, what will be the price o f MP3 players in the United States ? a. $60 b. $6 5 c. $90 d. $ 70