Riverbed Inc. recently hired a new accountant with extensive experience in accounting for partnerships. Because of the pressure of the new job, the accountant was unable to review what he had learned earlier about corporation accounting. During the first month, he made the following entries for the corporation's common shares: Date Account Titles and Explanation Debit Credit May 12 Cash 224,400 Common Shares 224,400 (Issued 13,200 common shares at $17 per share.) 14 Cash 468,000 Common Shares 468,000 (Issued 9,000 preferred shares at $52 per share.) 15 Common Shares 19,180 Cash 19,180 (Purchased and retired 1,370 common shares at $14 per share.) 31 Cash 7,740 Common Shares 6,020 Gain on Sale of Shares 1,720 (Issued 430 shares at $18 per share.) Assume that no other common share transactions had been recorded earlier. Based on the explanation for each entry, prepare the entries that should have been made for the common share transactions. If an entry is correct, repeat the entry. (Credit account titles are automatically indented when the amount is entered. Do not indent manually.) Date Account Titles and Explanation Debit Credit May 12 Cash 252 Common Shares May 14 Cash Preferred Shares May 15 Treasury Shares Cash UNA May 31 Treasury Shares Cash