The accompanying table shows a pizzeria's fixed cost and variable cost at different levels of output. Pizzas sell for $20 each.Number of Pizzas Per DayFixed Cost ($/Day)Variable Cost ($/Day)050002550015050500250755004501005008501255001,650 Between 25 and 50 pizzas per day, the pizzeria's marginal cost is ________.
A. $8
B. $16
C. $6
D. $4
Answer: D
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A time-series graph displays the price of copper. The slope of the line is negative for periods when the
A) price of copper is falling. B) price of copper is rising. C) quantity of copper is falling. D) price of copper is low and not changing.
Which of the following is associated with the problem of hyperinflation? a. Money is in short supply
b. The value of money rises dramatically. c. The government runs out of money. d. People look for alternatives to using money. e. People start to hold on to money for long periods of time.
The new classical school holds that: a. macroeconomic equilibrium is achieved only through active government intervention. b. unemployment is only temporary, because the economy tends naturally toward equilibrium. c. rigid prices and wages prevent the economy from achieving equilibrium. d. macroeconomic equilibrium cannot occur as long as the aggregate supply curve isvertical
e. rational expectations result in involuntary unemployment and prolonged periods of macroeconomic disequilibrium.
The linear regression equation, Y = a + bX, was estimated. The following computer printout was obtained: 
Given the above information, if X equals 20, what is the predicted value of Y?
A. -186.42 B. 186.42 C. -411.72 D. 165.69