Scuba diving, Elisa descends at a rate of 5 1 2 feet per minute. If she starts at the water's surface and descends for 5 minutes, how far will she be from a dock that is 5 feet above the water's surface? Enter your answer as a decimal.

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?