Company: Alphabet Inc.

Alphabet Inc., the parent company of Google, exhibited impressive financial performance in the year ending December 31, 2023. The company generated total revenue of $300 billion, with a cost of goods sold (COGS) of $100 billion and operating expenses of $120 billion. Net income amounted to $50 billion. Based on this information: a) Calculate the gross profit margin. b) Determine the operating profit margin. c) Compute the net profit margin. d) Evaluate the return on equity (ROE) if shareholders' equity is $200 billion.