(15 POINTS TOTAL). You purchase a machine with a 4-year life expectancy. The machine costs $65,000 and the delivery and installation costs are $8,500. Salvage value is 0. You depreciate the machine using a double declining balance approach switching to straight line when appropriate. Fill in the blank and upload all work for this problem in Question 12. a. What is a (can be expressed as a fraction #/# or a decimal)? b. What is the straight line depreciation for n = 2? c. What is the double declining balance depreciation for n = 1 d. What year should you switch from DDB to SL? e. What is the sum of the depreciation taken for years 3 and 4