Mathematics, 07.09.2019 05:30, joe7977

There are 80 people at the city swim park today. everyone in the park was wearing swim suits or sunglasses, some people had both. how many people had swim suits on but not sunglasses, if you know 68 people have swim suits on and 39 have sunglasses?

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There are 80 people at the city swim park today. everyone in the park was wearing swim suits or sung...