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Mathematics, 15.04.2020 20:57 AvaHeff

Allison went to the 2012 summer Olympics and watched the U. S women's volleyball match against brazil. 70% of the serves from brazil were out of bounds. Allison saw 20 serves from Brazil in all.
How many serves from Brazil were out of bounds?

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Allison went to the 2012 summer Olympics and watched the U. S women's volleyball match against brazi...

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