a. Using straight-line depreciation, what is the book value after two years for an asset costing $120,000 that has a salvage value of $30,000 after 10 yoars? What is: the depreclation charge in the third year? b. Using declining-balance depreciation with d=20 percent, what is the book value after two years for an asset costing $120,000? What is the depreciation charge in the third year? c. What is the depreciation rate using declining balance for an asset costing $120,000 and having a salvage value of $30,000 after 10 years? a. The book value after two years using straight-line depreciation is $ (Round to the nearest cent as needed. Round ali intermediate values to six decimal places as needed.) The depreciation charge in the third year using straight-eine depreciation is $ (Round to the nearest cent as needed. Round al intermediate values to sx decimal places as needod.) b. The book value after two years using declining-balance depreciation is $ (Round to the nearest cent as needed. Round all intermedrate values to six decimal places as needed.) The depreciation charge in the third year declining-balance deprecation is $ (Round to the nearest cent as needed. Round all intermediate valuas to six decimal places as needed.) c. The depreciation rate using declining batance is percent. (Round the final answer to one decimal place as needed. Round all intermediate values to six decimal places as needed.)