15. Find online the annual 10-K report for Costco Wholesale Corporation (COST) for fiscal year 2015 (filed in October 2015). Answer the following questions from its cash flow statement:

a. How much cash did Costco generate from operating activities in 2015?

b. What was Costco depreciation expense in 2015?

c. How much cash was invested in new property and equipment (net of any sales) in 2015?

d. How much did Costco raise from the sale of shares of its stock (net of any purchases)

in 2015?