The company purchased equipment for $464,000 and they estimated the residual value to be $100,000 at the end of the estimated 5 years or 14,000 hours service life. For Straight-line: 1. Determine Book value at the end of year 3$ For Double declining balance: 2. Determine depreciation expense for year 2$ 3. Determine depreciation expense for year 3$ For Activitv based: 4. Determine depreciation expense for year 3$ 5. Determine Book value at the end of year 3$