1. .: Amazon.com, Inc. reported the following income statement figures for the year ended December 31, 2023:
   • Net Sales: $50,000,000
   • Cost of Goods Sold: $30,000,000
   • Operating Expenses: $10,000,000
   • Interest Expense: $1,000,000
   • Income Tax Expense: $5,000,000
   • Net Income: $4,000,000 a. Calculate Amazon.com, Inc.'s Gross Profit Margin and Operating Profit Margin. b. Determine Amazon.com, Inc.'s Return on Assets (ROA) and Return on Equity (ROE). c. Discuss how Amazon.com, Inc.'s interest expense affects its profitability ratios. d. Analyze the effective tax rate of Amazon.com, Inc. and its implications for shareholders.