If the exchange rate between the Canadian dollar (c) and the U.S. dollar ($) changes from 1c=1.30 to 1c=1.05, What can we say?
1) The Canadian dollar has appreciated against the U.S. dollar
2) The Canadian dollar has depreciated against the U.S. dollar
3) The exchange rate between the two currencies has remained the same
4) Cannot be determined from the given information