The Records of CDE Provided the Following Information for the Period

The records of CDE provided the following information for the period ended December 31, 2011: $\begin{array} { | l | l | } \hline \text { Merchandise inventory increase } & \$ 20 \\\hline \text { Accounts payable increase } & 30 \\\hline \text { Decrease in securities available for sale } & 15 \\\hline \text { Interest payable decrease } & 7 \\\hline \text { Accounts receivable decrease } & 10 \\\hline \text { Wages payable increase } & 4 \\\hline \text { Depreciation expense } & 13 \\\hline \text { Income (as reported on the income statement) } & 47 \\\hline\end{array}$ Calculate net cash inflow from operating activities for 2011.