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Norbert sold 23 books on Thursday for a curtain price. On Friday, ha sold 35 of the same books, but he charged $0.50 less per book. If he made $490.00 in total, how much did the book sell for each day?
In a certain mill the cost C is thousands of dollars of producing x tons of steel is given by C = 0.3x + 3.5. The revenue R in thousands of dollars from selling x tons if given by R = 0.5x. Find the point at which R=C (the break-even point).
Music club A has a $30 membership fee and charges $8 per CD. Music club B has a $45 membership fee and charges $7 per CD. How many CDs would a person need to buy for club A to be the more expensive?
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