Answer:
Date   Account Titles and Explanation     Debit    Credit
Apr 1   Retained earnings                $20,000
       [10000*10%]*$20
          To common stock                      $1,000
           {1000*$1]
           To additional Paid-in-capital             $19,000
           -Common stock [1000*(20-1)
       (To record stock dividends)
May 1   Cash                            $3,600
       (200*$18)
          To treasury stock                       $3,600
       (To record purchase of treasury stock)
Sept 1 Â No entry
Dec 1  Retained earnings                  $10,800
     [(10000+1000-200)*2]*$0.5
         To cash                                $10,800
      (To record declaration and payment of cash dividends)