We're looking for the pay, on Monday, with a wage of $12/hr. The hours worked are the following: 8:15-12:15 (four hours), and 13:00-17:30 (four and a half hours).
The total pay (P) for that day is calculated by multiplying the wage by the total worked hours:
![P=12\cdot(4+4.5)=12\cdot8.5=102](https://img.qammunity.org/2023/formulas/mathematics/college/89gbpvj5m7wle8lxt170npcuy8yfyy6sjj.png)
The answer is $102.