A merchant plans to sell two models of MP3 players at costs of $250 and $300. The $250 model yields a profe of $25 per unit and the $300 model yieids a profit of 140 per unit. The merchant estimates that the total monthly demand will not exceed 200 units. The merchant does not want to invest more than $55,000 in inventory for these products. What is the optimal inventory level for each model? v units of the $250 model x units of the $300 model 10 183.3 What is the optimal profit? $ 6532