What is the Range of {(1, 2), (3,4)}

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Tim's phone service charges $26.39 plus an additional $0.21 for each text message sent per month. if tim's phone bill was $31.64, which equation could be used to find how many text messages, x, tim sent last month?

Acarton of juice contains 64 ounces miss wilson bought six cartons of juice how many ounces of juice did she buy