Refer to the accompanying table below. The marginal cost of the 3'd unit of this activity is: Units of Activity Total Cost Total Benefit $0 $0 1 $30 $100 $40 $160 3. $60 $190 4. $100 $210 $150 $220 6. $210 $225 2. 5.

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a. Calculate marginal cost using the formula given in the chapter: ATotal cost/AQuantity. Quantity Variable cost ($) Total cost ($) Marginal cost ($) 0 0 100 1 60 160 2 110 210 100 3 180 280 100 4 270 370 100 5 400 500 100 b. Calculate AVariable cost/AQuantity. Quantity Variable cost ($) AVariable cost Total cost ($) ($)/ AQuantity 0 0 100 1 60 160 100 2 110 210 100 3 180 280 100 4 270 370 100 5 400 500 100

Costs and Profit Maximization: Work It Out 1 Suppose Margie decides to lease a photocopier and open up a black-and-white photocopying service in her dorm room for use by faculty and students. Her total cost, as a function of the number of copies she produces per month, is given in the table. Number of Photocopies Per Month Total Cost Fixed Cost Variable Cost Total Revenue Profit 0 $100         1,000 $110         2,000 $125         3,000 $145         4,000 $175         5,000 $215         6,000 $285         a. Fill in the missing numbers in the table, assuming that Margie can charge 6 cents per black-and-white copy. Margie's fixed cost is: $       Variable cost, 0 photocopies/month: $     Variable cost, 1,000 photocopies/month: $     Variable cost, 2,000 photocopies/month: $     Variable cost, 3,000 photocopies/month: $     Variable cost, 4,000 photocopies/month: $…

Use the graph from class to find 1. Marginal Cost at 100; 2. Total Cost at 100; 3. Variable Cost at 100; 4. Fixed Cost at 100. Construct your own graphs similar to the ones from class. Use your diagram to show . 5. Whether or not reducing the quantity produced will always reduce the total cost. 6. Whether or not reducing the quantity produced will always reduce the average total cost. 7. Whether or not reducing the quantity produced will always reduce the marginal cost. 59 30 10- 5 MC ATC AVC 100 0

Chris The use of fixed cost items to magnify the firm's results Correct! What are some uses for break-even analysis? Select all that apply, then click Submit below To see how much the changes in cost affect variable costs. To see how much the changes in volume affect cost and profit. To determine the magnitude of operations necessary to avoid loss. To figure out the most efficient level of fixed costs for the firm. To figure out the most inefficient way to make profit. To figure out the operating leverage. Submit

In economics, what is the term for the highest-valued alternative that must be sacrificed when making a decision? A. Marginal cost B. Opportunity cost C. Sunk cost D. Average cost