Questions about example sentences with, and the definition and usage of "Minutos"

A: I will be there in 10 minutes

A: I'll get to work 5 minutes late.

A: @bryanlaines502: I'll be home in 30 minutes

A: I'll arrive in 5 minutes.

A: It's 20 minutes from here.
(I hope this is correct)

A: Class will start in 5 minutes.

A: When you say “for me”, you are saying that you yourself will be able to do it in 40 minutes. When you say “to me”, you are saying that 40 minutes is enough for everybody involved, not just yourself. “To me” is more general.