Ronnie is starting a business selling handmade necklaces. He has decided to invest an initial amount of $ 33 for advertising, and materials cost $ 7 for each necklace he makes. Ronnie can sell his creations of him for $ 18 per necklace. Once he makes and sells a certain number of necklaces, he will break even, with identical expenses and sales. How many necklaces would that take? What would the total expenses and sales be then?