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?