The comparative financial statements prepared at December 31, 2022, for Walmart showed the following summarized data:

Income Statement:

Sales Revenue: $500,000

Cost of Goods Sold: $350,000

Operating Expenses: $100,000

Income Tax: $15,000

Net Income: $35,000

Balance Sheet:

Cash: $50,000

Accounts Receivable: $100,000

Inventory: $150,000

Operational Assets: $200,000

Current Liabilities: $120,000

Long-term Liabilities: $130,000

Equity: $250,000

Calculate the return on equity (ROE).

Determine the current ratio.

Find the debt-to-equity ratio.

Compute the net profit margin.