Selected accountinformation (in 5 millions) from Target Corporation's 2018 annual report follows. While the company has authorized the issuance of 5 militon shares of preferred stock, none have been issued. (a) Calculate Target Corporation's return on assets for 2018. (Round answers to 1 decimal place, eg. 50.1\%.) Return on assets % eTextbook and Media Assistance Used Attempts: unlimited (b) Calculate Target Corporation's return on common stockholders' equity for 2018. (Round answers to 1 decimal place, eg. 50.1\%.) Return on common stockholder's equity eTextbook and Media