Using the information below, calculate the average total depreciable life of the assets: Information from the Balance Sheet: 2011 Depreciable Assets Accumulated Depreciation Depreciable Assets (Net) 2012 $600,000 (175,000) $425,000 $400,000 (100.000) $300,000 2012 From the Income Statement Depreciation Expense $50,000 a. 7.25 years b.6.54 C 6.91 years d. 9.15 years years