Teri wants to buy as many pencils and pens as possible. She wants three pencils for every pen. Each pencil costs $0.15 and
each pen costs $0.20. She cannot spend more than $6.50.
What is the maximum number of pens she can purchase?

What is the solution to the system of equations? (–2, –8) (–1, –5) (0, –2) (2, 4)

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?  

Determine if the equation defines y as a function of x: 2xy = 1. yes o no