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07-05-2017
Chemistry

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a vaccum cleaners has 120j 45j are used how effucent is the cleaner

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Аноним Аноним

07-05-2017

J=75. Because he has already used 45 of his/her 120

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JAY1111110000 JAY1111110000

07-05-2017

J=75 HOPE THIS HELPS!

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