(b) carlos wants to try out a different bird food. he sees that a bag of keet supreme contains 20 servings of food and a bag of veggie blend contains 18 servings of food. a serving is 3/4 cup of food. carlos has a bin that holds exactly 14 cups of food. carlos will buy the bag of food that contains the most food and that he can empty completely into his bin. which bag should carlos buy? show your work.