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Mathematics, 07.10.2021 14:00 lala1794

A pet store surveyed 161 people to gather information about the types of pets the own. 84 dogs, 67 birds , both 39. How many people own a dog or a bird or both?

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A pet store surveyed 161 people to gather information about the types of pets the own. 84 dogs, 67 b...
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