Question

1. earning $72 for 3 hours of babysitting.

Explanation:

Assuming the problem is to find the hourly rate (earnings per hour):

Step1: Identify total earnings and hours

Total earnings = $72, Hours = 3.

Step2: Calculate hourly rate

Hourly rate = $\frac{\text{Total Earnings}}{\text{Hours}}$ = $\frac{72}{3}$ = 24.

Answer:

The hourly rate is $24 per hour.