At a certain time, the exchange rate between us dollars and euros is approximately 1 dollar
to 0.77 euros. within this context, what does a represent in the equation 0.77a=100 ?
(10 points)
1. the amount of us dollars required to exchange for 100 euros
2. the amount of euros required to exchange for 100 us dollars
the exchange rate of euros to dollars
3. the amount of us dollars gained by converting us dollars to euros
4. the amount of us dollars gained by converting us dollars to euros