The 2017 retained earnings balance was? please show work so I understand

Use the following to answer questions 2-8. \begin{tabular}{|l|c|c|} \hline Item & 2017 & 2018 \\ \hline Accounts Payable & 550 & 230 \\ \hline Accounts Receivable & 510 & ? \\ \hline Accruals & 1,000 & 1,100 \\ \hline Cash & 300 & 550 \\ \hline Common Stock & 1,970 & 2,250 \\ \hline Cost of Goods Sold & 4,000 & 4,500 \\ \hline Depreciation Expense & 200 & 350 \\ \hline Interest Expense & 170 & 190 \\ \hline Inventory & 3,000 & 3,250 \\ \hline Long Term Debt & 1,500 & 1,550 \\ \hline Net Fixed Assets & 2,700 & 2,400 \\ \hline Notes Payable & 750 & 580 \\ \hline Operating Expense & 300 & 430 \\ \hline Retained Earnings & ? & 865 \\ \hline Sales & 5,000 & 6,000 \\ \hline Taxes & 120 & 140 \\ \hline \end{tabular} 5. If dividends paid in 2018 were $265, the 2017 retained earnings balance was $ a. 710 b. 725 c. 740 d. 770 e. 800