National Supply's shareholders' equity included the following accounts at December 31, 2017: Shareholders' Equity Common stock, 9 million shares at $1 par Paid-in capital-excess of par Retained earnings ($ in millions) $ 9,000,000 81,000,000 80,500,000 Required: 1. National Supply reacquired shares of its common stock in two separate transactions and later sold shares. Prepare the entries for each of the transactions under each of two separate assumptions: the shares are (a) retired and (b) accounted for as treasury stock. February 15, 2018 February 17, 2019 November 9, 2020 15, 2018 Reacquire Reacquired 240,000 shares at $12 per share. Reacquired 240,000 shares at $9.50 per share. Sold 155,000 shares at $11 per share (assume FIFO cost). 2. Prepare the shareholders' equity section of National Supply's balance sheet at December 31, 2020, assuming the shares are (a) retired and (b) accounted for as treasury stock. Net income was $17 million in 2018, $18 million in 2019, and $19 million in 2020. No dividends were paid during the three-year period