A college charges a basic fee of $100 per semester plus an additional fee of $60 per credit hour. You take 10 credit hours this semester. The marginal cost to you of the 10th credit hour this semester is:

5. profit maximization and shutting down in the short run suppose that the market for polos is a competitive market. the following graph shows the daily cost curves of a firm operating in this market. 0 2 4 6 8 10 12 14 16 18 20 50 45 40 35 30 25 20 15 10 5 0 price (dollars per polo) quantity (thousands of polos) mc atc avc for each price in the following table, calculate the firm's optimal quantity of units to produce, and determine the profit or loss if it produces at that quantity, using the data from the previous graph to identify its total variable cost. assume that if the firm is indifferent between producing and shutting down, it will produce. (hint: you can select the purple points [diamond symbols] on the previous graph to see precise information on average variable cost.) price quantity total revenue fixed cost variable cost profit (dollars per polo) (polos) (dollars) (dollars) (dollars) (dollars) 12.50 135,000 27.50 135,000 45.00 135,000 if the firm shuts down, it must incur its fixed costs (fc) in the short run. in this case, the firm's fixed cost is $135,000 per day. in other words, if it shuts down, the firm would suffer losses of $135,000 per day until its fixed costs end (such as the expiration of a building lease). this firm's shutdown price—that is, the price below which it is optimal for the firm to shut down—is per polo.

Why is efficiency an important economic goal?

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?