Answer:
To find Anna's rate of pay, we need to divide her earnings by the number of hours worked.
Earnings for 13 hours = $235.30
Earnings for 19 hours = $343.90
Earnings for 23 hours = $416.30
To find the rate of pay, we can choose any set of earnings and hours and divide them. Let's choose the first set:
Rate of pay = Earnings / Hours worked
Rate of pay = $235.30 / 13 hours
Using a calculator, we get:
Rate of pay = $18.10/hour
Therefore, Anna's rate of pay is $18.10 per hour.