Answer:
145 millons free cash flow for the year
Explanation:
100 operating income
+ 15 depreciation (this expense do not involve cash, so they add up cash)
+50 long term asset sales (more cash in form of currency)
-10 capital expenditure (cash used purchase, mantaing or improve their assets)
-10 investment in working capital (we use it to adquire assets or pay liabilities)
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145 millons free cash flow for the year