The McDonald’s fast- food restaurant on campus sells an average of 4,000 quarter- pound hamburgers each week. Hamburger patties are resupplied twice a week, and on average the store has 350 pounds of hamburger in stock. Assume that the hamburger patties cost $ 1.00 a pound. What is the inventory turnover for the hamburger patties? On average, how many days of supply are on hand?