Mrs. roberts has a favorite recipe for 1 batch of snack mix. the recipe is : 2 1/2 cups pretzels 2 1/2 cups dry cereal 2 1/4 peanuts 3/4 cup raisins part a : she estimates that each serving is 3/4 cups snack mix. how many batches of snack mix will she need in order to make 200 servings? show and explain all of your steps. part b : how much of each ingredient will mrs. roberts need to make 200 servings? show and explain all of your steps.