Pls answer the questions with your detailed explanations, it's much appreciated!

3.1 Which one of the following can the accounting equation can be rewritten as? Assets + profit - drawings - liabilities = closing capital Assets - liabilities - drawings = opening capital + profit Assets - liabilities - opening capital + drawings = profit Assets - profit - drawings = closing capital - liabilities (2 marks) 3.2 A trader's profit for the year may be computed by using which of the following formulae? Opening capital + drawings - capital introduced - closing capital Closing capital + drawings - capital introduced - opening capital Opening capital - drawings + capital introduced - closing capital Opening capital - drawings - capital introduced - closing capital (2 marks) 3.3 The profit earned by a business in 20X7 was $72,500. The proprietor injected new capital of $8,000 during the year and withdrew goods for their private use which had cost $2,200. If net assets at the beginning of 207 were $101,700, what were the closing net assets? $35,000$39,400$168,400$180,000 (2 marks)