Terrence is folding paper cranes at a constant rate. The table below shows the amount of time he needs to fold cranes.

The? half-life of a radioactive substance is 20 years. if you start with some amount of this? substance, what fraction will remain in 120 ? years

In the sixth grade 13 out of 20 students have a dog if there are 152 sixth grade students how many of them have a dog

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?