Question

On October 2, 1991 , the Japanese yen was worth .0075 united States . At that time how much was 450 yen worth in united States dollars

Answer 1

In order to find out how much 450 yen was worth in U.S dollars, all you have to do is multiply 0.0075 by 450. 

0.0075 * 450 = 3.375 

Meaning that 450 yen at the time was worth approximately $3.40 when rounded.