Required: Compute the following: (1) current ratio, (2) acid-test ratio, (3) days' sales uncollected, (4) inventory turnover, (5) days' sales in inventory, (6) debt-to-equity ratio, (7) times interest earned, (8) profit margin ratio, (9) total asset turnover, (10) return on total assets, and (11) return on common stockholders' equity. (Do not round intermediate calculations.)

Selected year-end financial statements of Cabot Corporation follow. (All sales were on credit; selected balance sheet amounts at December 31, 2016, were inventory, $47,900; total assets, $229,400; common stock, $85,000; and retained earnings, $43,279.)

CABOT CORPORATION Income Statement For Year Ended December 31, 2017
Sales	$	456,600
Cost of goods sold		297,350
Gross profit		159,250
Operating expenses		99,100
Interest expense		4,100
Income before taxes		56,050
Income taxes		22,579
Net income	$	33,471

CABOT CORPORATION Balance Sheet December 31, 2017
Assets				Liabilities and Equity
Cash	$	22,000		Accounts payable	$	18,500
Short-term investments		9,400		Accrued wages payable		5,000
Accounts receivable, net		32,200		Income taxes payable		3,900
Notes receivable (trade)*		6,000
Merchandise inventory		36,150		Long-term note payable, secured by mortgage on plant assets		72,400
Prepaid expenses		2,500		Common stock		85,000
Plant assets, net		153,300		Retained earnings		76,750
Total assets	$	261,550		Total liabilities and equity	$	261,550

* These are short-term notes receivable arising from customer (trade) sales.