a$.$ How did Marble Comics' net working capital to total assets ratio change from $2008$ to $2009?$

b$.$ Which of Marble Comics' liquidity measures increased from $2008$ to $2009?$

c$.$ What was Marble Comics' total debt ratio in $2009?$

d$.$ Marble Comics' times interest earned ratio is:

e$.$ Assume Marble Comics' days' sales in inventory ratio was $120$ days in $2001.$ By how much did it change in $2009?$

f$.$ The profit margin of Marble Comics Group is:

g$.$ Calculate Marble Comics' ROE for $2009.$

Question $2$: Sales are $$75,000,$ cost of goods sold is $$35,000$ and inventory is $$5,000.$ What is the number of days sales in inventory? $(1$ mark$)$

Question $3$: Cash is $$500,$ inventory is $$4,800,$ accounts receivable is $$3,200$ and accounts payable is $$2,400.$ What is the quick ratio? $(1$ mark$)$

Question $4$: Earnings before interest and taxes is $$74,300.$ Interest is $$8,300$ and depreciation is $$9,700.$ What is the cash coverage ratio? $(1$ mark$)$

Question $5$: Current assets are $$94,700.$ Accounts payable is $$36,200,$ net income is $$12,400$ and sales are $$110,800.$ What is the net working capital turnover rate? $(1$ mark$)$

Question $6$: A firm has a profit margin of $9\%$ on sales of $$400,000.$ There are $10,000$ shares of common stock outstanding. What is the earnings per share? $(1$ mark$)$