compute free cash flow

Cash Flows from Operating Activities Net Income $67,200 Adjustments to reconcile net income to Net Cash Provided by Operating Activities \begin{tabular}{|l|r|r|} \hline Depreciation Expense & $36,750 & \\ \hline Increase in Accounts Receivable & (12600) & \\ \hline Increase in Inventory & (16800) & \\ \hline Increase in Accounts Payable & $8,400 & \\ \hline Decrease in Income Taxes Payable & (2100) & \\ \hline & & $13,650 \\ \hline Net Cash Provided by Operating Activities & & $80,850 \\ \hline \end{tabular} Cash Flows from Investing Activities \begin{tabular}{|l|r|r|} \hline Sale of Equipment & $17,850 & \\ \hline Net Cash Provided by Investing Activities & & $17,850 \\ \hline & & \\ \hline Cash Flows from Financing Activities & & \\ \hline Issuance of Common Stock & $8,400 & \\ \hline Redemption of Bonds & (33600) & \\ \hline Payment of Dividends & (42000) & \\ \hline Net Cash Used by Financing Activities & & (67200) \\ \hline Net Increase in Cash & $31,500 \\ \hline Cash at Beginning of Period & $42,000 \\ \hline Cash at End of Period & $33,500 \\ \hline \end{tabular}