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?

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

answerthe vertex form

step-by-step explanation:

3

step-by-step explanation:

divide 13.5 by 9 to get the scale factor. it equals 1.5

2 * 1.5 = 3