HELP ME....PLEASE!!!
This homework is confusing and and a lot of nonsense, please help me, brainliest will be given (this is mean to be Ethics but they don't have that choose)

1) what is the most likely number of aliens' civilizations in the Milky Way that could communicate with us?

2) how far away could the nearest aliens be?

3) Answer the following:
“We have seen no evidence of alien life, so there are no other civilizations in the universe other than ours.’’ Do you agree?