A company has $15 billion of sales and $2.5 billion of net income. Its total assets are $7 billion, and its total invested capital equals it total assets. Capital consists of half equity and half debt. The companys interest rate is 6%. The appropriate tax rate is 35%. Compute the following:

a. Return on assets

b. Return on equity

c. Return on invested capital

d. Net profit margin

e. Use DuPont equation to calculate ROE

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