<PRE><B>Question 718226</B>
I need help making 2 equations for this: 
The break-even point is the point at which income 
equals expenses. Ridgemont High School is paying $13,200 for the 
writing and research of their yearbook plus a printing fee of $25 per 
book. If they sell the books for $40 each, how many will they have to sell 
to break even?
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Expense = 13200+25x where x is the number of books
Revenue = 40x
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Break-even:
40x = 13200+25x
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15x = 13200
x = 880 books
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Cheers,
Stan H.</PRE>