Carrie wants to buy a new iPhone. The new iPhone costs $800. She can trade in her Samsung Galaxy for $240. She can make $80 per week babysitting. How many weeks does she have to work before she can purchase the iPhone?
The total cost of the iPhone will cost Carrie $800 - $240 = $<T>subtract(800, 240)=560
It will take her $560 / $80 = <T>divide(560, 80)=7.0 weeks to earn enough money.
