In 1995, one dollar bought ¥80. In 2000, it bought about ¥110.
a. What was the dollar value of the yen in 1995? What was the yen's dollar value in 2000?
b. By what percentage has the yen fallen in value between 1995 and 2000?
c. By what percentage has the dollar risen in value between 1995 and 2000?