Ralph sold brownies for $0.27 a piece in order to earn money to buy baseball cards. If the cards cost $1.35 per pack, and if Ralph had no money left over after buying them, what is the least number of brownies he must have sold?
99(15) = 1.35x14.85 = 1.35x14.85/1.35 = 11 I think it is 15. I am not sure about the proper way to solve this....I just know that if he sold 15 brownies, he could buy 11 packs with exactly no change left over.