On May 1, Howard Corporation purchased 2,000 shares of its $10 par value common stock at a cash price of $15/share. On July 15, 900 shares of the treasury stock were sold for cash at $17/share. Journalize the two transactions. (Credit account titles are automatically indented when the amount is entered. Do not indent manually. If no entry is required, select "No Entry" for the account titles and enter O for the amounts.) Date Account Titles and Explanation May 1 Treasury Stock Jul. 15 Debit 30000 15300 Credit 30000 13500 1800