Jonah has a recipe that uses 1 ½ cups of brown sugar and 2 ⅓ cups of flour to make 24 muffins. He has a total of 7 cups of flour. Jonah wants to use all of his flour to make as many muffins as possible using the recipes. Part A: Exactly how many cups of brown sugar will jonah use, if he uses all 7 cups of flour? Part B: Exactly how many muffins will jonah make if he uses all 7 cups of flour?