Calculate the cash dividends required to be paid for each of the following preferred stock issues:

Required:
a. The semiannual dividend on 6% cumulative preferred, $50 par value, 30,000 shares authorized, issued, and outstanding.
b. The annual dividend on $3.60 cumulative preferred, 400,000 shares authorized, 180,000 shares issued, 148,200 shares outstanding. Last year’s dividend has not been paid.
c. The quarterly dividend on 7.5% cumulative preferred, $100 stated value, $103 liquidating value, 120,000 shares authorized, 112,000 shares issued and outstanding. No dividends are in arrears.