A company started the year with the following: Assets $131,000; Liabilities $44,000; Common Stock $74,000; Retained Earnings $13,000. During the year, the company earned revenue of $6,900, all of which was received in cash, and incurred expenses of $3,950, all of which were unpaid as of the end of the year. In addition, the company declared and paid dividends of $2,900 to owners. Assume no other activities occurred during the year. The amount of the company's retained earnings at the end of the year is: