Caterpillars December 31st, 1998 balance sheet shows accounts receivable of approximately $2.5 billion, accounts payable of approximately $4.0 billion, and an inventory of approximately $3.0 billion. Their 1998 income statement shows Cost of Good Sold (COGS) of approximately $15 billion, sales of approximately $20 billion, and operating costs of approximately $18 billion. How many days, on average, does an entry stay on Caterpillars accounts receivable? Assume a year has 360 days. 80 days 20 days 72 days 45 days