Toni needs a total of $600 to buy a cell phone. She has already saved $350. If she saves $40 a week from her earning what is the least number of weeks she must work to have enough money to buy the cell phone?
First subtract 350 from 600 to get 250. I then divided by 40 to see how many groups were in 250, and got 6.25. Since it took greater then six days, Toni will have to work 7 days to get $600.
