Final answer:
Alex's gross earnings for the 8 hours of overtime work on Canada Day would be $252.00, calculated at a rate of 1.5 times his regular hourly wage of $21.00.
Step-by-step explanation:
To calculate Alex's gross earnings for working the extra 8 hours on Canada Day, we need to determine his overtime pay which is time and a half his regular hourly rate. His regular hourly rate is $21.00. Overtime pay at time and a half would therefore be 1.5 times his hourly rate, which is $31.50 per hour (21 x 1.5).
For the 8 hours of overtime work, Alex would earn:
- 8 hours x $31.50/hour = $252.00
Therefore, Alex's gross earnings for the holiday, with the overtime, would be $252.00.