Answer and explanation:
If Sam's base rate is $9 per hour and his hourly rate is $4 per hour initially. If he receives pay rises of 4% and 5% on hourly and base rate respectively, his new hourly rate and base rate would be:
105/100×9= $9.45
104/100×4= $4.16
Assuming normal working hours for a week(mon-fri) =.40 hours
Then Sam worked an extra 2 hours
His base pay= 40×$9.45= $378
Extra Hourly pay = 2×$4.16= $8.32
