D. A firm purchased a new piece of equipment with an estimated useful life of eight years. The cost of the equipment was $65,000. The salvage value was estimated to be $10,000 at the end of year 8....

D.  A firm purchased a new piece of equipment with an estimated useful life of eight years.  The cost of the equipment was $65,000.  The salvage value was estimated to be $10,000 at the end of year 8.  Using the Double-Declining Balance (DDB) Method, what is the amount of resulting book value for year 7?

E.  A firm purchased a new piece of equipment with an estimated useful life of eight years.  The cost of the equipment was $65,000.  The salvage value was estimated to be $10,000 at the end of year 8.  Using the Double-Declining Balance (DDB) Method, what is the amount of resulting book value for year 4?