Final answer:
Daisy's net earnings for working 13 hours at the ice-cream parlor would be $155. This includes her standard rate for the first 8 hours and time and a half for the additional hours worked.
Step-by-step explanation:
If Daisy works x hours in a day, and x is greater than 8, her net earnings for the day would include her regular pay for the first 8 hours and time and a half for each hour worked beyond 8 hours.
The time and a half rate is calculated as 1.5 times her hourly wage of $10, resulting in $15 for each additional hour. Thus, if she works 13 hours, her earnings will be calculated as follows:
For the first 8 hours: 8 hours × $10/hour = $80
For the remaining 5 hours: 5 hours × $15/hour = $75
Total earnings for 13 hours: $80 (for the first 8 hours) + $75 (for the extra 5 hours) = $155