The answer is 33% but show caluclation of how we get 33%

Assume that the following financial ratios were computed from the 2009 financial statements of Carolina Industries: Return on sales (profit margin) 0.10 Return on total assets 0.17 Common equity leverage 0.87 Capital structure leverage 2.22 Asset turnover 1.69 What was the return on common equity for Carolina in 2009