Question
At a charity event, puffs are sold at $2.85 each. Two puff is given free for every 10 puffs bought. Betty paid $57 for some puffs. How many puffs did she get in total for $52?
2 m

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At a charity event, puffs are sold at $2.85 each. Two puff is given free for every 10 puffs bought. Betty paid $57 for some puffs. How many puffs did she get in total for $52?