Refer to Table 13-1. What is the marginal revenue of the 3rd unit?

Rich countries (measured by GDP per capita) tend to have __________ infant mortality rates, __________ life expectancies at birth, and __________ adult literacy rates than poor countries

a. higher; higher; higher b. lower; higher; higher c. lower; lower; higher d. lower; lower; lower e. lower; higher; lower

An example of a good that can be used for money that has intrinsic value is:

A. cigarettes. B. fish. C. gold. D. All of these have intrinsic value.