For a recent 2-year period, the balance sheet of Riverbed Company showed the following stockholders equity data at December 31 (in millions). 2020 2019 Additional paid-in capital $ 970 $ 830 Common stock 660 651 Retained earnings 7,200 5,220 Treasury stock 1,702 884 Total stockholders equity $7,128 $5,817 Common stock shares issued 220 217 Common stock shares authorized 500 500 Treasury stock shares 37 26 (a) Answer the following questions. (1) What is the par value of the common stock? (Round par value to 2 decimal places, e.g. $3.15.) Par value of common stock $enter the par value of the common stock rounded to 2 decimal places (2) What is the cost per share of treasury stock at December 31, 2020, and at December 31, 2019? December 31, 2020 December 31, 2019 Cost per share of Treasury stock $enter a dollar amount $enter a dollar amount (b) Prepare the stockholders equity section at December 31, 2020. (Enter account name only and do not provide descriptive information.) Riverbed Company Balance Sheet (in millions of dollars) (Partial) select an opening name for the section select an opening name for subsection one enter a balance sheet item $enter a dollar amount select a balance sheet item enter a dollar amount select a summarizing line for the first part of subsection one enter a total of the two previous amounts enter a balance sheet item enter a dollar amount select a closing name for subsection one enter a total amount for subsection one select between addition and deduction : enter a balance sheet item enter a dollar amount select a closing name for this section $enter a total amount for the section