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Clothes shopping

Melanie is  shopping for work clothes.  She has found a dress for $75 and a two-piece suit for only $60.  She does not have enough money for both, so she must choose only one.  Of course, both are "dry clean only."  If her dry cleaner charges $4.50 for a dress or $3 for each piece of a suit, which will be a better deal in the long run?  How many times will she have to dry clean the purchased item before it is the better deal?

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