Straker Industries estimated its short-run costs using a U-shaped average variable cost function of the formAVC = a + bQ + cQ2and obtained the following results. Total fixed cost (TFC) at Straker Industries is $1,000. 
If Straker Industries produces 20 units of output, what is estimated total variable cost (TVC)?
A. $2,348
B. $1,498
C. $1,348
D. $4,428
Answer: C
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A. offsets any change in B. increases C. decreases D. may either increase or decrease
In the antebellum period, the largest source of employment was:
a. the agricultural sector. b. the manufacturing sector. c. government (local, state and federal) d. the service industry.
Quinn's income to spend each month on two normal goods, bowling or eating out, is $100. It costs $10 to bowl for the night, and it costs $20 for Quinn to eat at a restaurant. Quinn currently consumes four nights of bowling and three meals at a restaurant. If the price of bowling increased to $15, the income effect would predict:
A. Quinn would consume more of each good. B. Quinn would consume less of each good. C. Quinn would consume more bowling and less meals out. D. Quinn would consume less bowling and more meals out.
In a perfectly competitive market, in response to a permanent decrease in demand:
a. the short run equilibrium price will be higher than the eventual long run equilibrium price b. the short run equilibrium price will be lower than the eventual long run equilibrium price. c. the short run equilibrium price will be the same as than the eventual long run equilibrium price. d. we cannot know whether the short run equilibrium price will be below the eventual long run equilibrium price.