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12.11 Solutions to Second Review

    1.  

    2. .1

    3. .19

    4.  

    5.  

    6. where n is large.

    7. This means that after many years, a third of the teachers in the district will be at each school, A, B, and C, regardless of how many teachers are in each school now.

    1. 2x + 1.5

    2. 3x - 1.5

    1. 1.9x2 + 2.8x - 1.1

    2. 3x2 - 2.2x + 1.1

    1.  

    2.  

    3.   and         

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