Please ASAP my homework will close in 40 min please help

IV. A dairy products company wants to commercialize its own cheese production by proposing a diet program based on cheese and bread. For a healthy diet, each meal must include at least 120 grams of protein, 68 grams of fats and 240 grams of carbohydrate. The nutritive contents that exist in bread and cheese are: Protein Calories Food Bread Cheese Fats 0.5 2 6 Carbohydrates 10 0 40 100 8 Find out the quantities of bread and cheese that contains the minimum of nutritive elements and can guarantee a healthy diet with the minimum of calories