Allison is saving to buy a $500 bicycle by working during summer vacation.
- The job pays her $8 for every 1 hour worked.
- Allison works exactly 20 hours each week.
If she works for 4 weeks and buys the bicycle, how much money will she have left over?
Allison will earn $8 x 20 hours = $160 each week.
Over 4 weeks, she will earn $160 x 4 = $640.
After buying the $500 bicycle, she will have $640 - $500 = $140 left over.
Allison will have $140 left over.