In which situation would you most likely use the tú form? con compañeros con figuras de autoridad con ancianos con profesores

Con compañeros is the most appropriate time to use tú form.

All others are professional/require show of respect or usted form.

This is not a question. this is you asking us to do the work for you. we would be setting you up for failure if we did the work for you. if you have any questions, ask.

This doesn’t make sense