The following are selected financial data in thousands of dollars for the Hunter Corporation. 2006 2005 Current Assets $ 500 $ 400 Fixed Assets, net $ 700 $ 600 Total Assets $ 1,200 $ 1,000 Current Liabilities $ 300 $ 200 Long?Term Debt $ 200 $ 200 Common Equity $ 700 $ 600 Total Liabilities and Equity $ 1,200 $ 1,000 Net Sales $ 1,500 $ 1,200 Total Expenses $ (1,390) $ (1,100) Net Income $ 110 $ 100 a. Calculate Hunter's rate of return on total assets in 2006 and in 2005. Did the ratio improve or worsen? b. Diagram the expanded DuPont system for Hunter for 2006. Insert the appropriate dollar amounts wherever possible. c. Use the Du Pont system to calculate the return on assets for the two years, and determine why they changed.