Nike, Inc., a major sportswear manufacturer, reported its financial data for the fiscal year 2023.

The company's total assets amounted to $80 billion, with total liabilities of $50 billion. Its net

income for the year stood at $8 billion, and the shareholders' equity was $30 billion.

a) Determine the company's leverage ratio.

b) Calculate the company's debt ratio.

c) Find out the net profit margin of the company.

d) Calculate the return on equity (ROE) percentage.