please do 4 and 5 question i will really appreciate that

Question I Analyze and categorize various expenses into fixed cost, variable cost and initial investment Question 2 Find the breakeven point and plot a CVP graph Question 3 How many bricks need to be sold so as to earn a targeted income of Rs. 2 million per year? Question 4 How do volumes affect the return on equity? Question 5 What advice can be given to the owners?