lJackson bought a new iphone. He made an intial payment of $150 to AT&T and he will pay $40 each month until the iphone is paid off. Which equation represents the relationship between m, the number of monthly payments Jackson has made, and, the total amount that Jackson has paid to AT&T?
t = 150m-40
t =150m +40
t = 40m - 150
t = 40m+ 150