Final answer:
To find the hourly wage, divide the total earnings by the total hours worked, which results in an hourly wage of a) $17.14 after rounding to two decimal places.
Step-by-step explanation:
To calculate the person's hourly wage, you need to divide the total amount paid ($480) by the total hours worked (28 hours).
This gives you the formula: Hourly Wage = Total Earnings / Total Hours Worked.
When you do the calculation:
Hourly Wage = $480 / 28 = $17.14 (rounded to two decimal places).
Therefore, the correct answer is a) $17.14 per hour.