GHI Corporation presents the following financial figures:

• Total assets: $1,200,000
• Total liabilities: $500,000
• Preferred stock: $80,000
• Common stock: $300,000
• Additional paid-in capital: $120,000
• Retained earnings: $200,000
• Net income: $150,000

Find out: a) Times interest earned ratio b) Price-to-earnings ratio c) Return on common equity d) Earnings before interest and taxes (EBIT)