Need detail solution step by step.

Response upload instructions: You should attach your Excel file. Please be sure to label each part of your answer as 2a, 2b, etc. The 2013 financial statements for Leggett \& Platt, Inc. report the following information: a. By what percentage are the assets 'used up' at the year-end 2013? What implication does this ratio have for future cash flows at Leggett \& Platt? (5 points) b. Estimate the useful life on average for the Leggett \& Platt depreciable assets.(5 points) c. How does this computation relate to a firm's investment and financing decisions ( 6 points)