Select all the equations that have the same solution as 2x-5=15

What is the radius of the cone in the diagram? round your answer to the nearest whole number

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?

Hello, i need compare km^2 and km. what's difference in this?