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Mathematics, 23.09.2019 04:30 sjsmith21

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problems with unit rates - item 20218
the classes at the middle school want to raise money.
the sixth grade runs a bake sale for 5 hours and makes $170.
the seventh grade sets up a dunking booth for 4 hours and makes $112.
the eighth grade has a car wash and makes $192 in 6 hours.
which class has the highest rate for raising money?

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