What time is 1 hour and 30 minutes before 8: 15 a. m.?

Aschool puts on a play. the play costs $1,200 in expenses. the students charge $4.00 for tickets. there will be one performance of the play in an auditorium that seats 500 people. what is the domain of the function that shows the profit as a function of the number of tickets sold?  

Which of the following can be used to explain a statement in a geometric proof?

The anwser cause i do not understand just plez