Answer: Louis earns $15 per hour
Explanation:
Hi, to answer this question we have to analyze the equation given:
Amount of money Louis earns
y=15x
Since "y" is the total amount he earns, and "x" is the number of hours he works, 15 is equal to the earnings per hour.
For example, if he works 1 hour:
y = 15 (1)
y =15
If he works 1 hour, he earns $15.
Feel free to ask for more if needed or if you did not understand something.