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A Dolphin is 30 feet below the surface of the water. She rised 23 feet, sinks 17 feet, and finally rises another 27 feet. If there are no other changes, the dolphin is

  • math -

    30 + 23 + 27 - 17 = ?

  • math -

    30+ 23+27-17= 80-17= 63

  • math -

    -30+23= -7
    -7-17= -24
    -24+27= 3

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