Answer :
Answer: Yassil earns $12 per hour.
Step-by-step explanation: For Jeraly, the equation y = 9x represents her earnings, where y is the amount of money she earns for working x hours. Since the equation is in the form y = mx, where m represents the rate of change or earnings per hour, we can see that her earnings per hour are $9.
Now, for Yassil, we can find his earnings per hour using the given data points. We can calculate the rate of change by finding the slope of the line passing through the points (3, 36), (4, 48), (5, 60), and (7, 84). By using the formula for slope, which is (change in y) / (change in x), we can find the average rate of change, which represents the earnings per hour.
For Yassil:
Slope = (Change in Money Earned) / (Change in Time Worked)
= (84 - 36) / (7 - 3)
= 48 / 4
= $12 per hour
So, Yassil earns $12 per hour.