Company: Alibaba Group Holding Limited

Item	Amount (in millions)
Revenue	$109,480
Cost of Goods Sold (COGS)	$61,400
Gross Profit	$48,080
Operating Expenses	$22,000
Operating Income	$26,080
Interest Expense	$1,200
Income Tax Expense	$5,800
Net Income	$19,080

Questions:

1. What is Alibaba's gross profit margin?
2. Calculate Alibaba's operating profit margin.
3. Determine Alibaba's net profit margin.
4. If Alibaba’s total assets are $250,000 million, what is the return on assets (ROA)?
5. What is the return on equity (ROE) if Alibaba’s total equity is $120,000 million?