Mastercard Incorporated, a global payments technology company, disclosed its financial

performance for the fiscal year 2023. The company's total assets amounted to $250 billion, with

total liabilities of $150 billion. Its net income for the year stood at $20 billion, and the

shareholders' equity was $100 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.