Calculate the annual cash dividends required to be paid for each of the following preferred stock issuances: (a.) $2.40 cumulative preferred, no par value; 300,000 shares authorized, 235,000 shares issued, 14,000 shares held as treasury stock. (b.) 10%, $50 par value preferred; 100,000 shares authorized, 62,000 shares issued and outstanding. (c.) 13% cumulative preferred, $40 stated value, $42 liquidating value; 70,000 shares authorized, 46,000 shares issued, 44,000 shares outstanding