The graph shows the locations of point C and point D. Point E is graphed at (n,2). The distance from point D to point E is equal to the distance from point D to point C. What is the distance from point D to point E? What is the value of n?

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?