Headphones

Charlie is saving money to buy a pair of headphones for $225. He has $37 so far, and he can save $15 per week. In how many weeks will he have enough money to buy the headphones?

Correct result:

t =  13 w

Solution:

t1=2253715=1881512.5333 w  t=t1=12.5333=13 w



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