The following data were taken from the 2017 annual reports of Biogen Idec, Inc. and Amgen, Inc. Both companies are leaders in biotechnology. All dollar amounts are in millions.

Required

a. For each company, compute the debt-to-assets ratio, return-on-assets ratio, and return-on-equity ratio.

b. Which company has the greatest level of financial risk? Explain.

c. Which company appears to have managed its assets most efficiently? Explain.

d. Which company performed better from the perspective of the owners? Explain.

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Blogen Idec Amgen December 31, 2017 December 31, 2017 Total assets Total liabilities Stockholders' equity Net income $23,652.6 $79,954 54,713 25,241 11,054.5 12,598.1 2,670.1 1,979