16. $ During the first two years, the company's truck was driven 75,000 and 81,000 miles, respectively, to deliver merchandise to its customers. The company originally purchased the truck for $125,000. If the truck has an estimated life of 5 years or 400,000 miles, with an estimated residual value of $25,000, what amount of depreciation expense should the company record in the second year using the activity-based method? 17. $ The company purchased equipment at the beginning of Year 1 for $425,000. In Years 1-4, it depreciated the asset on a straight-line basis with an estimated useful life of 10 years and a $20,000 residual value. What is the BOOK VALUE of the equipment at the beginning of Year 5? Use the following to answer questions 18 - 19 AD Enterprises purchased equipment for $350,000 on January 1, year 1. The equipment is expected to have a 5- year life, with a residual value of $50,000 at the end of its service life. 18. $ Using the double-declining balance method, determine depreciation expense for year 2. 19. S Using the straight-line method, determine book value at the end of year 2