Here are simplified financial statements for Phone Corporation in a recent year:

INCOME STATEMENT
(Figures in $ millions)
Net sales	$	12,800
Cost of goods sold		3,860
Other expenses		4,127
Depreciation		2,398
Earnings before interest and taxes (EBIT)	$	2,415
Interest expense		665
Income before tax	$	1,750
Taxes (at 30%)		525
Net income	$	1,225
Dividends	$	836

BALANCE SHEET
(Figures in $ millions)
	End of Year				Start of Year
Assets
Cash and marketable securities	$	85			$	154
Receivables		2,182				2,410
Inventories		167				218
Other current assets		847				912
Total current assets	$	3,281			$	3,694
Net property, plant, and equipment		19,933				19,875
Other long-term assets		4,176				3,730
Total assets	$	27,390			$	27,299
Liabilities and shareholders equity
Payables	$	2,524			$	3,000
Short-term debt		1,399				1,553
Other current liabilities		791				767
Total current liabilities	$	4,714			$	5,320
Long-term debt and leases		8,014				7,549
Other long-term liabilities		6,138				6,109
Shareholders equity		8,524				8,321
Total liabilities and shareholders equity	$	27,390			$	27,299

Calculate the following financial ratios for Phone Corporation: (Use 365 days in a year. Do not round intermediate calculations. Round your final answers to 2 decimal places.)

a.Return on equity (use average balance sheet figures)%

b.Return on assets (use average balance sheet figures)%

c.Return on capital (use average balance sheet figures)%

d.Days in inventory (use start-of-year balance sheet figures)days

e.Inventory turnover (use start-of-year balance sheet figures)

f.Average collection period (use start-of-year balance sheet figures)days

g.Operating profit margin%

h.Long-term debt ratio (use end-of-year balance sheet figures)

i.Total debt ratio (use end-of-year balance sheet figures)

j.Times interest earned

k.Cash coverage ratio

l.Current ratio (use end-of-year balance sheet figures)

m.Quick ratio (use end-of-year balance sheet figures)