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Mathematics, 24.01.2020 12:31 gldven7636

For the past three months , grace used her cell phone for 43 minutes , 62 minutes, and 57 minutes. how many minutes would she have to use her cell phone this month for the average usage over the four months to be 55 minutes?

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For the past three months , grace used her cell phone for 43 minutes , 62 minutes, and 57 minutes. h...
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