You should request a meeting with the building's Principal to discuss your child's graduation requirements if they're not clear to you. School's...

One of a school's primary jobs is the safety of the students in their care, so objects thrown in class (and threats of fights) are not appropriate...

You need to enroll your child in the school district where you currently live. You should not be charged to acceptance to the local public school...

Yes, the school can refuse to release students during a "shelter in place." ................................

Likely they cannot expel for foul language...but that would depend on the circumstances. If you're concerned, get your parent or guardian involved.

The Principal's boss is likely the school district's Superintendent. If you have issues with the Principal's performance, you should escalate to...

You need to comply with the school's requirements for testing. Sorry about your diagnosis..........

Serve your detention, then have your parent or guardian meet with your building administrator to ask that your record be purged of the infraction.

I am assuming this was a private school of some sort. Yes, private schools go out of business. I recommend that you schedule an appointment with...

Go meet with the teacher's supervisor, likely a Vice (or Assistant) Principal.......................