Question

Suppose one person sends a letter to seven people, and the following week those seven people send a letter to seven other people. If this pattern continues, how many letters will be sent out on the fifth week?
help plz

Answer 1

on the first week, 7 letters are sent out.
on the second week, 7 times 7 letters are sent out since each of the seven people who received letters send out 7 letters
on the third week, 7 times 7 times 7 letters are sent out
on the 5th week
7^5

Answer 2

so 16807 is what i get if i times 7^5 that seems like a really high number