Given:
a.) A cashier worked an 8-hour day and earned $58.00.
To be able to determine how much do the cashier earns per hour, we will be using the following equation:
![\text{ Earnings per hour = }\frac{Daily\text{ earnings}}{Numbe\text{r of hours worked}}](https://img.qammunity.org/2023/formulas/mathematics/college/kewk6wy7y8yjzyhe1hrn9g6mjt45t9xnow.png)
This equation means that to be able to determine the cashier's earning per hour, we divide his/her earnings by the number of hours he/she worked.
We get,
![\text{ = }\frac{\text{ \$58}}{8\text{ Hours}}](https://img.qammunity.org/2023/formulas/mathematics/college/95qywt1g0evvtcjj9xz88ox0h8ejvdjj7i.png)
![\text{ = \$7.25 per hour}](https://img.qammunity.org/2023/formulas/mathematics/college/4p64rigxsuk6b1d4u483ne3um2iubsnrj3.png)
Therefore, the cashier is earning $7.25 per hour.