Amazon.com, Inc., a global e-commerce giant, disclosed its financial performance for the fiscal

year 2023. The company's total assets amounted to $1.2 trillion, with total liabilities of $800

billion. Its net income for the year stood at $70 billion, and the shareholders' equity was $400

billion.

a) Determine the company's debt-to-assets ratio.

b) Calculate the company's debt-to-equity ratio.

c) Find out the return on assets (ROA) percentage.

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