I would recommend answering in a full sentence, not just with a "yes" or "no":
so:
You don't mind being here?
Answer: No, I don't mind being here
or : Yes, that is correct: I don't mind being here
or: no, I actually do mind a bit. can we go somewhere else please?
Answer:
Dear whatever your teachers name is,
i will not be attending school tommorrow becasue i have a doctors appointment, I understand if you dont believe me but if it comes to this you can call my mom to confirm this. I also have a doctors notes prior to the appointment.
the main reason Im writting this letter to ask you if I can have tommorrows or this weeks homework, thanks!
sincerly, whatever your name is
Wang-Yangming
He was a Confuscian thinker and was considered highly influential during this era.