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At a​ supermarket, a​ 6-ounce bottle of brand A salad dressing costs​ $1.56. A​ 14-ounce bottle costs​ $3.36. A​ 20-ounce bottle costs​ $5.60. What unit prices do you need to know to find the best ​ buy? What is the best ​ buy?

User Stin
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Answer:

20 ounce bottle is the best

User UserSN
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