A fair coin is flipped three times. What is the probability of getting two heads and then a tail?

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?  

In angle pqr find the measure of

In a column proof the right column states your reasons