United Airlines Financial Summary for 2023:

• Total Revenue: $70 million
• Cost of Services: $40 million
• Operating Expenses: $20 million
• Interest Expense: $3 million
• Tax Expense: $4 million
• Total Assets: $85 million
• Total Liabilities: $50 million

1. Calculate the operating profit margin.
2. Determine the net profit margin.
3. Compute the times interest earned (TIE) ratio.

Compute the equity multiplier.