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Mathematics, 02.09.2019 13:50 sarah121868

Sixth graders have an average of 60 minutes of homework, four days a week. l seventh graders have 20 minutes more per day than sixth graders. how many minutes per week of homework does a seventh grader have?

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Sixth graders have an average of 60 minutes of homework, four days a week. l seventh graders have 20...
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