If each mark represents one unit, which number does B represent?

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?  

What is the total surface area of this square pyramid?

The sum of these consecutive integers is equal to 9 less than 4 times the least of the integer. find the three integers