Ron is flying a hot air balloon at an altitude of 570 meters. He releases air from the balloon in order to change the altitude by -2.5 meters every second for 4 seconds. 1a. Write an equation and solve to find the change in altitude. 1b. Write an equation and solve to find the new altitude.

What is the domain and range of each function 1. x (3, 5, 7, 8, 11) y ( 6, 7, 7, 9, 14) 2. x (-3, -1, 2, 5, 7) y (9, 5, 4, -5, -7)

Which of the following best describes the delian problem?

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?