A grocer wants to sell fiuit in boxes. He wants to make the boxes from square card 36 inches long and 36 inches wide as shown.

In what form is the following linear equation written y=9x+2

Having a hard time understanding this question (see attachment).

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?