You're comparing the financial performance of three companies based on their key financial metrics.

Company A: Microsoft Corporation

• Revenue: $168 billion
• Net Income: $61 billion
• Total Assets: $301 billion

Company B: Johnson & Johnson

• Revenue: $93 billion
• Net Income: $14 billion
• Total Assets: $172 billion

Company C: Walmart Inc.

• Revenue: $560 billion
• Net Income: $13 billion
• Total Assets: $236 billion

Requirements:

• Calculate the Return on Assets (ROA) for each company.
• Analyze the profitability ratios for each company.
• Discuss the financial strengths and weaknesses of each company based on the provided information.