this is financial accounting can anyone do all of these problems plssssss

Equipment with a cost of $192,000 has an estimated salvage value of $18,000 and an estimated life of 4 years or 12,000 hours. It is to be depreciated by the units of activity method. What is the amount of depreciation for the first full year, during which the equipment was used 3,100 hours? On June 1,2007, Bartin Company purchased the copyright to Motion Computer Tutorials for $120,000. It is estimated that the copyright will have a useful life of 10 years. The amount of Amortization Expense recognized for the year 2007 would be Equipment, purchased on January 1st, with a cost of $192,000 has an estimated salvage value of $18,000 and an estimated life of 4 years or 12,000 hours. It is to be depreciated by the double declining balance method. What is the amount of depreciation for the second year, during which the equipment was used 3,300 hours