The following partial information is taken from the comparative balance sheet of Levi Corporation: Shareholders equity 12/31/2018 12/31/2017 Common stock, $5 par; 36 million shares authorized; 31 million shares issued and 25 million shares outstanding at 12/31/2018; and ____million shares issued and ____shares outstanding at 12/31/2017. $ 155 million $ 125 million Additional paid-in capital on common stock 523 million 395 million Retained earnings 192 million 160 million Treasury common stock, at cost, 6 million shares at 12/31/2018 and 4 million shares at 12/31/2017 (67 million) (45 million) Total shareholders equity $ 803 million $ 635 million How many of Levi's common shares were outstanding on 12/31/2017?