题目内容

[单选] The graph illustrates a typical

A. total-cost curve.
B. production function.
C. production possibilities frontier.
D. fixed-cost curve.

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[单选] The changing slope of the total cost curve reflects

A. decreasing average variable cost.
B. decreasing average total cost.
C. decreasing marginal product.
D. increasing fixed cost.

[单选]Which of the following costs of publishing a book is a fixed cost?

A. author royalties of 5% per book
B. the costs of paper and binding
C. shipping and postage expenses
D. composition, typesetting, and jacket design for the book

[单选]Suppose Jan started up a small lemonade stand business last month. Variable costs for Jan's lemonade stand now include the cost of

A. building the lemonade stand.
B. hiring an artist to design a logo for her sign.
C. lemons and sugar.
D. All of the above are correct.

[单选]The Wacky Widget company has total fixed costs of $100,000 per year. The firm’s average variable cost is $10 for 10,000 widgets. At that level of output, the firm’s average total costs equal

A. $10
B. $15
C. $20
D. $25

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