Which rates are equivalent?

Question

6 U.S. dollars = 18 U.S. dollars
8 Canadian dollars 20 Canadian dollars

6 U.S. dollars = 9 U.S. dollars
8 Canadian dollars 12 Canadian Dollars

6 U.S. dollars = 9 U.S. dollars
8 Canadian dollars 16 Canadian dollars

6 U.S. dollars = 15 U.S. Dollars
8 Canadian dollars 16 Canadian dollars

You have simply made 8 statements that are either incorrect or make no sense.

What is your question?

O NOEZS..........I THINK THIS GUY IS MENTALLY HANDICAPPED!!!!!!!!!!!!

6 U.S. dollars = 9 U.S. dollars
8 Canadian dollars 12 Canadian Dollars