Final answer:
To find the number of hours worked this week, you can divide the total earnings before taxes by the hourly rate.
Step-by-step explanation:
To solve this problem, we can use the formula:
Earnings = Rate x Hours
Let x be the number of hours you worked this week. We can write the equation:
173.70 = 9.65x
To find x, we can divide both sides of the equation by 9.65:
x = 173.70 / 9.65
Using a calculator, we find that x is approximately 18.
Therefore, you worked approximately 18 hours this week.