Final answer:
Rafael would have to work approximately 18 hours to make $234.
Step-by-step explanation:
To find out how many hours Rafael would have to work to make $234, we can set up a proportion:
Hours Worked / Amount Earned = Hours Worked / Amount Earned
Using the given information, we can substitute the values and set up the equation:
11 / 143 = x / 234
Cross-multiplying, we get:
143x = 11 * 234
Dividing both sides by 143, we find that:
x = (11 * 234) / 143
Calculating the value, we get approximately:
x = 18
Therefore, Rafael would have to work approximately 18 hours to make $234.