We are about to have a new president

Use set buikder notation to represent the following set: {, -2, -1, 0}

Determine domain and range, largest open interval, and intervals which function is continuous.

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?