3. Advantage Systems has an inventory conversion period of 60 days, a receivable collections period of 32 days and a payables deferral period of 37 days. What is the length of the firm's cash conversion cycle? a. b. If Advantage's annual sales are $8,700,000 and all sales are on credit, what is the firm's investment in accounts receivable? How many times per year does Advan tage Systems turn over its inventory? c