Mrs. Brady is a dance teacher whose students are going to have a recital. She is comparing two companies' prices for filming the recital and producing DVDs. Lacey's Productions charges $9 per DVD, plus $76 to come and film the recital. Yardley Media charges $84 to film, plus $8 per DVD. To decide which company to use, Mrs. Brady determines the number of DVDs that would make the two options equivalent in terms of cost. How much would each option cost? How many DVDs would that be?