Please answer the highlighted questions

Your company has an asset with a cost basis of $65,000, a useful life of 9 years, and no salvage value. If the asset is depreciated using a 200% declining balance method, answer the following questions: a) How much does the value depreciate in Year 1? b) How much does the value depreciate in Year 2? c) What is the book value at the end of Year 4? d) What is the book value at the end of Year 9 (the end of the useful life)? If the asset is depreciated using a 200% declining balance with straight line switchover method, answer the following questions: e) In which year does the switchover occur (what is the first year of straight line depreciation)? f) How much does the value depreciate in Year 9