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Required information [The following information applies to the questions displayed below.] The stockholders' equity section of The Seventies Shop is presented here. ($ in thousands) THE SEVENTIES SHOP Balance Sheet (partial) Stockholders' equity: Preferred stock, $50 par value Common stock, $5 par value Additional paid-in capital Total paid-in capital Retained earnings Treasury stock Total stockholders' equity $0 12,500 25,000 37,500 45,500 (2,200) $80,800 Based on the stockholders' equity section of The Seventies Shop, answer the following questions. Remember that all amounts are presented in thousands. Required: 1. How many shares of preferred stock have been issued? (Enter your answer in total number of shares, not in thousands.) Number of shares