What is the measure of the exterior angle?

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?  

Your food costs are $5,500. your total food sales are $11,000. what percent of your food sales do the food costs represent?

What is the scale factor of two similar pyramids with volumes of 64 cubic feet and 8 cubic feet