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23 August, 23:10

Is Dana school closes a phone tree is used contact each students family the secretary calls three families then each family calls 3 other families and so on, how many families will be notified by the sixth round of calls?

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  1. 23 August, 23:14
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    1*3^6 or 2187

    Step-by-step explanation:

    1*3=3

    3*3=9

    9*3=27

    27*3=81

    81*3=243

    243*3=729

    729*3=2187
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