Using the information below, calculate the average total depreciable life of the assets: Information from the Balance Sheet: 2012 Depreciable Assets $2,458,600 2011 $1,985,400 Accumulated Depreciation (1,350,700) Depreciable Assets (Net) $1,107,900 (1,046,000) $939,400 2012 $384,500 From the Income Statement Depreciation Expense a. 6.54 years O b.7.25 years c. 6.91 years O d.9.15 years