A firm had current assets of $50,000, net fixed assets of $250,000, current liabilities of $ 30,000, and long-term debt of $100,000

1. What is the firms stockholder equity?
2. What is the net working capital?
3. If its current liabilities consist of $20,000 in accounts payable and $10,000 in short-term debt (notes payable), what is the firms net working capital?

Your submission must include and indicate clearly which EQUATIONS from the textbook that you have used, and must show steps in details that lead to your answers.