S.A. Electronics manufactures portable tape players and CD players. The manufacturing plant has the capacity to manufacture at most 750 tape players and 500 CD players in one month. It takes 2 hours to make a tape player and 5 hours to make a CD player. The company can spend no more than 3000 hours manufacturing these products. S.A. Electronics makes $4 profit on tape players and $7 profit on CD players. To maximize profits, how many tape players and how many CD players should they make? What is the maximum profit?