Question

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?

Answer 1

Answer:

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