How do I solve this problem in excel? I started working on it, but I'm a bit stuck. Please show me how to do it, your help is greatly appreciated. Thumbs up guaranteed for best answer :)

Beddy Pan, RN, is trying to develop a diet plan for her patients. The required nutritional elements and the total daily requirements of each nutritional element are shown in the table. Ms. Pan has four basic food types to use in planning her menus. The units of nutritional elements per unit of food types are shown in the table. Note that the cost associated with a unit of ingredient is also shown at the bottom of this table. Formulate the linear programming model and solve this problem. Milk Calories Carbohydrat Min 2700 Meat 160 210 110 130 90 190 50 50 $0.42 $0.68 Bread 120 110 90 75 $0.32 Vegetable Max 150 120 130 70 $0.17 Protein Vitamins Cost/unit