A company uses two vans to transport workers from a free parking lot to the workplace between 7:00 and 9:00 a. m. One van has 5 more seats than the other. The smaller van makes two trips every morning while the longer one makes only one trip. Two vans can transport 65 people, maximum.

You just purchased two coins at a price of $670 each. because one of the coins is more collectible, you believe that its value will increase at a rate of 7.1 percent per year, while you believe the second coin will only increase at 6.5 percent per year. if you are correct, how much more will the first coin be worth in 15 years?