Please show a complete step-by-step solution thank you!

Interpreting and Applying Disclosures on Property and Equipment Following are selected disclosures from Rohm and Haas Company (a) IMPAIRMENT OF LONG-LIVED ASSETS (a) Compute the PPE (land, buildings and equipment) turnover for 2007 (Sales in 2007 are $8,897 million). (Round your answer to two decimal places.) (b) Rohm and Haas reported depreciation expense of $412 million in 2007. Estimate the useful life, on average, for its depreciable PPE assets. (Round your answer to two decimal places.) years (c) By what percentage are Rohm and Haas' assets "used up" at year-end 2007? (Round your answer to two decimal places.)