Shawn is coasting down a 500 cm long ramp on his inline skates. the wheels on his inline skates are 32 cm in circumference.
how many rotations does each wheel make while shawn is coasting down the ramp?

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?