Bob owns an auto parts firm. He uses a combination of steel and aluminum to produce his auto parts. All of the following combinations will finish the task on time. Steel costs $15 per unit and the aluminum costs $50 per unit. What combination of steel and aluminum should he use?
A. 10 units of steel and 10 units of aluminum
B. 20 units of steel and 6 units of aluminum
C. 15 units of steel and 7 units of aluminum
D. 12 units of steel and 8 units of aluminum
Answer: C
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Are the wages of the pilots marginal costs or sunk costs to an airline trying to decide whether to add a late-night flight from Seattle to San Francisco? They are
A) marginal costs because pilots are indispensable to the flight. B) sunk costs if the pilots will receive no additional compensation for the flight. C) marginal costs because they will be paid after the flight rather than before. D) sunk costs because pilots' wage rates are determined by a contract already existing.
From 1970 to 2010, the real price of eggs decreased and the total annual consumption of eggs decreased
Which of the following would cause an unambiguous decrease in the real price of eggs and an unambiguous decrease in the quantity of eggs consumed? A) A shift to the right in the supply curve for eggs and a shift to the right in the demand curve for eggs. B) A shift to the left in the supply curve for eggs and a shift to the right in the demand curve for eggs. C) A shift to the left in the supply curve for eggs and a shift to the left in the demand curve for eggs. D) none of the above
In which of the following cases does the Robinson-Patman act not apply?
a. There are no cost differences to serving different groups b. Discounts are never offered to meet competition c. The industry does not engage in promotional allowances d. All of the above
Since 1990, a major industrial country with the lowest growth rate in per capita GDP has been _____
a. West Germany b. Italy c. The United States d. Great Britain e. Canada