In the long run, assume a firm uses both labor and capital to produce 2525 units of output. The marginal product of the last unit of labor being employed is 100100 ; the marginal product of the last unit of capital being employed is 500500 . The wage rate of labor is $10$10 . If the firm is minimizing the cost of producing 2525 units of output, what must be the unit price of capital?

Acompany that uses the periodic inventory system provided the following information: 1. beginning inventory $ 5 comma 0002. purchases $ 150 comma 0003. purchase discounts $ 2 comma 1004. purchase returns and allowances $ 1 comma 000at the end of the period, the physical count of inventory reveals that $ 16 comma 000 worth of inventory is on hand. what is the amount of cost of goods sold?