PLEASE HELP DUE TONIGHT! 100 PTS

The equation y=15x describes the amount of money Louis earns, where x is the number of hours he works and y is the amount of money he earns. The table shows the amount of money Carl earns for different numbers of hours works.

Carl's earnings: Time (h) 3, 5, 8, 10 Money earned ($) 45, 75, 120, 150

(a) how much money does Louis make per hour? (b) how much money does Carl
earn per hour? (c) who earns more money per hour? How do you know?