Which of the following statements is true?
A) A bar chart has many limitations in comparison to pie charts.
B) A bar chart does not allow for the comparison of a single variable across many segments.
C) A bar chart can only be used to represent independent variables.
D) A bar chart indicates the frequency of a variable by using rectangles of different heights or lengths.
D
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Answer the next question using the following budget information for a hypothetical economy. All data are in billions of dollars. Also assume that all budget surpluses are used to pay down the public debt. Government SpendingTax RevenuesGDPYear 1$800$825$4,000Year 28508504,200Year 39008754,350Year 49509004,500Year 51,0009254,600Assume that year 1 is the first year for this economy and year 3 is the current year. What is the public debt in this economy at year 3?
A. $75 billion B. $50 billion C. $25 billion D. $0 billion
In the long run, in the model of monopolistic competition, for a typical firm, price is
a. above average cost but equal to marginal cost. b. above marginal cost but equal to average cost. c. above marginal cost. d. equal to marginal cost and equal to or greater than average cost.
When the economy is in macro equilibrium,
a. the sum of savings plus investment must equal the sum of imports plus exports. b. the sum of savings plus imports plus taxes must equal the sum of investment plus government purchases plus exports. c. the sum of savings plus government purchases must equal exports minus imports. d. the government's budget must be in balance.
In Figure 26.1, the price under monopoly is 
A. A. B. F. C. P2. D. P1.