Intel Corporation had the following information for the year 2023:

23. 
    
    • Total Assets: $150 billion
    • Total Liabilities: $70 billion
    • Shareholders' Equity: $80 billion Calculate: a) The debt-to-equity ratio. b) The return on assets (ROA) if the net income for the year is $15 billion. c) The current ratio if the current assets are $60 billion and the current liabilities are $30 billion.