To determine Nick's hourly earnings for the job, we need to know either his total earnings for the job or his payment terms (for example, how much Deborah agreed to pay him for the entire job).
If you provide the total payment Nick received for the job, we can calculate his hourly earnings by dividing that total payment by the total hours he worked (4.2 hours).
The formula for hourly earnings is:
\[ \text{Hourly Earnings} = \frac{\text{Total Earnings}}{\text{Total Hours Worked}} \]
Please provide the total payment or fee for the job to proceed with the calculation.