The following information relates to a delivery van purchased by Gretchen's Bake Shop: . Cost-$20,000 Salvage Value - $2,000 Estimated Useful Life in Years - 5 Years . Estimated Useful Life in Miles - 200,000 miles Miles Driven by Year - 18,000 miles (Year 1), 32,000 miles (Year 2), 68,000 (Year 3), 53,000 (Year 4) and 29,000 (Year 5). Part 1(5 points) Using the units of activity method, what should depreciation expense be in Year 2? Part IL 15 points) Using the double declining balance method (40%), what is the book value of the delivery van at the end of Year 3