please answer this

Marin Inc. uses a calendar year for financial reporting. The company is authorized to issue 9,640,000 shares of $10 par common stock. At no time has Marin issued any potentially dilutive securities. Listed below is a summary of Marin's common stock activities. Compute the weighted-average number of common shares used in computing earnings per common share for 2020 on the 2020 comparative income statement. shares