Refer to the information provided in Table 6.3 below to answer the question(s) that follow.
Table 6.3Dozens of Oysters per DayTotal UtilityMarginal Utility160?2104?3134?4152?5?8Number ofBeers per DayTotal UtilityMarginal Utility140?270?394?4114?5?14Refer to Table 6.3. The marginal utility of the third dozen oysters per day is

The economic costs of forming a currency union will be lower whenever:

A) labor market integration is lower. B) labor market integration is higher. C) labor markets are not integrated. D) wage rigidities are present.

Which of the following statements is true?

A) A direct relationship has a negative slope value. B) A straight line has a slope of one. C) A curved line has slope values that change at every point. D) An inverse relationship has a positive slope value.