A firm's marginal cost is $82, its average total cost is $50, and its output is 800 units. Its total cost of producing 801 units is
A) less than $40,000.
B) between $40,000 and $40,050.
C) between $40,050 and $40,080.
D) greater than $40,080.
D
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Jason needs help getting ready for the next test in his economics course and would like to hire Maria, an economics tutor, to help him
Jason is willing to pay $30 for the first hour of tutoring, $25 for the second, $20 for the third, $15 for the fourth, and $10 for the fifth. The equilibrium price for tutoring is $15 per hour. For how many hours of tutoring will Jason hire Maria? Why this amount of hours? What is Jason's consumer surplus, if any, from the tutoring? What is Maria's consumer surplus from the tutoring?
Firms in long-run equilibrium in a perfectly competitive industry will produce at the low points of their average total cost curves because:
a. free entry implies that long-run profits will be zero no matter how much each firm produces. b. firms seek maximum profits and to do so they must choose to produce where average costs are minimized. c. firms maximize profits and free entry implies that maximum profits will be zero. d. firms in the industry desire to operate efficiently.