The McDonald$$s fast$-$food restaurant on campus sells an average of $1,600$ quarter$-$pound hamburgers each week. Hamburger patties are resupplied twice a week, and on average the store has $360$ pounds of hamburger in stock. Assume that the hamburger patties cost $$5$ a pound and there are $52$ weeks in a year.

a$.$ What is the inventory turnover for the hamburger patties? $($Round your answer to $2$ decimal places.$)$

b$.$ On average, how many days of supply are on hand? $($Do not round intermediate calculations. Round your answer to $2$ decimal places.$)$