Access EDGAR online (sec.gov/edgar) and locate the 2018 10-K report of Amazon.com (ticker: AMZN) filed on February 1, 2019. Review its financial statements reported for years ended 2018, 2017, and 2016 to answer the following questions.

Required

1. What are the amounts of Amazon’s net income or net loss reported for each of these three years?

2. Do Amazon’s operating activities provide cash or use cash for each of these three years? 

3. If Amazon has 2018 net income of $10,073 million and 2018 operating cash flows of $30,723 million, how is it possible that its cash balance at December 31, 2018, increases by only $10,317 million relative to its balance at December 31, 2017?