Hello any. faiz is here??? please answer.​

What is the value of x in the diagram below?

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?  

Are the corresponding angles congruent? explain why or why not.