Question 1195963
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Your school band sold stationery for $12 a box. 
The profit, P, in dollars is given by P = 12x - 3640, where x is the number of boxes sold. 
If the band made a profit of $2600, how many boxes of stationery were sold? 
You Must Show All Work
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Write equation as you read the problem

    12x - 3640 = 2600.


Simplify and find x

    12x = 2600 + 3640 

    12x =    6240

      x =    6240/12 = 520.


<U>ANSWER</U>.  520 boxes of stationery were sold.
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Solved, and all work is shown, to your satisfaction.