The U.S. Airfilter company has hired you as a supply chain consultant. The company makes air filters for residential heating and air-conditioning systems. These filters are made in a single plant located in Louisville, Kentucky, in the United States. They are distributed to retailers through wholesale centers in 100 locations in the United States, Canada, and Europe. You have collected the following data relating to the value of inventory in the U.S. Airfilter supply chain:

	QUARTER 1 (JANUARY THROUGH MARCH)	QUARTER 2 (APRIL THROUGH JUNE)	QUARTER 3 (JULY THROUGH SEPTEMBER)	QUARTER 4 (OCTOBER THROUGH DECEMBER)
	All amounts in millions of U.S. dollars
Sales (total quarter):
United states	352	484	502	766
Canada	129	72	101	117
Europe	73	40	24	17
Cost of goods sold (total quarter)	316	341	520	607
Raw materials at the Louisville plant (end-of-quarter)	54	51	81	64
Work-in-process and finished goods at the Louisville plant (end-of-quarter)	164	146	131	137
Distribution center inventory (end-of-quarter):
United states	51	28	46	36
Canada	16	15	15	24
Europe	7	4	10	8

a. What is the average inventory turnover for the firm? (Round your answer to 3 decimal places.)

Average inventory turnover

b. If you were given the assignment to increase inventory turnover, what would you focus on?

	Reduce the amount of inventory or increase sales or both
	Reduce the amount of inventory or reduce sales or both
	Increase the amount of inventory or increase sales or both

c. The company reported that it used $500M worth of raw material during the year. On average, how many weeks of supply of raw material are on hand at the factory? (Round your answer to 2 decimal places.)

Weeks of raw material supply