The number line shows the elevation of the bottom of a harbor and the elevation of a fish swimming close to the surface what change in elevation is necessary for the fish to reach bottom?


  1. Answer:
    Whatever number is larger than the number of the elevation of the bottom of the harbor
    Step-by-step explanation:
    the elevation needs to be smaller than the decrese of the elevation like this.
    Ex:  The temputure elevated 28 degrees then decreased 30 degrees.
    Boom :]


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