Can you walk me through the solution of: Heather bought a jumbo bag of raisins with 27 cups of raisins in it. She wants to make oatmeal cookies, granola, and snack mix with the raisins. A batch of oatmeal cookies takes 3/4 of a cup of raisins. How many batches of oatmeal cookies can Heather make if she divides the bag of raisins equally among the cookies, granola, and snack mix?