Meghan: $8.25 per hour
Lucas: $6.50 per hour
If you want to find out how much more Meghan earns per hour, you would subtract the amount per hour Lucas earns from the amount per hour Meghan earns.
Meghan's earnings - Lucas's earnings = how much more Meghan earns
$8.25 - $6.50 = $1.75
Meghan earns $1.75 more than Lucas per hour.