a phone tree is used to let committee members know ameeting is cancelled. The committee chair calls 5 people Those 5 people each call 5 people, and those additional people call 5 people. how many members have been called

5 * 5 * 5 =

155

you need to count original people too

To determine the total number of committee members who have been called, we need to add up the number of calls made at each level of the phone tree. Let's break it down step by step:

1. The committee chair calls 5 people.
2. The 5 people who receive the call each call 5 additional people. So, at this level, there are a total of 5 * 5 = 25 calls made.
3. The 25 people who received calls each call 5 additional people, resulting in a total of 25 * 5 = 125 calls made.

To find the total number of members who have been called, we sum up the calls made at each level:

1 (committee chair)
+ 5 (first level of calls)
+ 25 (second level of calls)
+ 125 (third level of calls)

Total = 1 + 5 + 25 + 125 = 156

Therefore, a total of 156 committee members have been called.