Anne Chang is the dietician for Humber College women's soccer team, and she is attempting to determine a nutritious lunch menu for the team. She has set the following nutritional guidelines for each lunch serving.

Between 1500 and 2000 calories

At least 5 mg of iron

At least 20 but no more than 60 g of fat

At least 30 g of protein

At least 40 g of carbohydrates

No more than 30 mg of cholesterol

She selects the menu from seven basic food items as follows, with the nutritional contribution per pound and the cost as given.

Calories (per lb)	Iron (mg/lb)	Protein (g/lb)	Carbohydrates (g/lb)	Fat (g/lb)	Cholesterol (mg/lb)	$/lb
Chicken	520	4.4	17	0	30	180	3.44
Fish	500	3.3	85	0	5	90	3.99
Ground beef	860	0.3	82	0	75	350	4.99
Dried beans	600	3.4	10	30	3	0	1.10
Lettuce	50	0.5	6	0	0	0	0.90
Potatoes	460	2.2	10	70	0	0	0.59
Milk (2%)	240	0.2	16	22	10	20	0.83

Anne wants to select a menu to meet the nutritional guidelines while minimizing the total cost per serving. Please help Anne to formulate a linear programming model and solve it using Excel Solver.