You are on the last day of your week-long road trip and you only have $15 left to spend on food for the entire day. Even though you have this financial limitation, you would still like to meet some rudimentary nutritional guidelines, which include: Calories: between 2000 and 2500 Protein: between 45 and 60 grams Carbohydrates: between 250 and 350 grams Fat: No more than 65 grams Fiber: At least 25 grams Sadly the only food options you come across are McDonalds and Subway, and only know the nutritional values of a few of their items. You must determine which items and how many of each item you must purchase for the entire day in order to minimize cost and meet your nutritional guidelines.