Answer:
$127.50
Step-by-step explanation:
On Monday Dana earned: 15*12.75 in 10 hours
For 40 hours Dana will earn: 15*12.75*(40/10) = $765
On Monday Monique earned: 10*12.75
For 40 hours Monique will earn: 10*12.75*(40/8) = $637.50
The difference between the weekly earnings is: $765 - $637.50 = $127.50.