worse subbing experience

I am subbing for a teacher who is out for jury duty but it has been terrible since day1.

1. the students's work is on the chromebooks they are on them from 8:45-3:00, it is all busy work that they finish usually by 12
2. the class does not listen to me at all- one of them told me "idgaf"
3. that same student was using their phone and i caught him so i asked him to give it to me and he was not listening... finally I said you can either give it to me or turn it in to the principle; this boy says let play truth or dare.. I DARE you to call the principle.. like whattttt !!!
4. the students think they are so entitled and grown, that they can speak to adults the way they want
5. also i feel admin does not really care

PS they are in 6th grade