McDonald's Corporation provided the following financial information for the fiscal year ending December 31, 2023: Total Revenue of $45,560 million, Operating Expenses of $29,820 million, and Net Income of $10,050 million. The company’s total assets were $58,970 million, and total equity was $23,890 million.

Questions:

1. Calculate McDonald's operating profit margin.
2. Compute McDonald's net profit margin.
3. Calculate the return on assets (ROA) for McDonald's.
4. Compute the return on equity (ROE) for McDonald's.
5. If McDonald's total liabilities were $35,080 million, what is the debt to equity ratio?