3. The equation y = 12x 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 worked. Carl’s Earnings Time (h) 3 5 8 10 Money earned ($) 45 75 120 150 (a) How much money does Carl earn per hour? Show your work. (b) Who earns more per hour? Justify your answer. (c) Draw a graph that represents Carl’s earnings over time in hours. Remember to label the axes.
