3z3, z when z=9z=9z, equals, 9.

Ben bowled 124 and 188 in his first two games. what must he bowl in his third game to have an average of at least 160?

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?  

When y’all answer can y’all explain too !