Denny buys a rare coin for $200 and sells the coin one year later for $220. Denny's rate of return is:

According to the table, the Big Mac would cost the same in Switzerland and the United States at an exchange rate of ________ Swiss franc for every one U.S. dollar

A) 0.86 B) 1.27 C) 1.36 D) 2.72

The supply curve of books (which are produced using paper made from trees) will shift to the left in response to: a. a decline in college tuition

b. a sharp increase in the demand for and construction of wood-frame homes. c. an increase in the supply of lumberjacks. d. an end to government regulations that limit timber harvesting in national forests.