Electrical equipment has a first cost of $42000 and an estimated salvage value of $12000 after 5years . Calculate the depreciation amount and book value at the end of the second and fifth years using...

Electrical equipment has a first cost of $42000 and an estimated salvage value of $12000 after 5years . Calculate the depreciation amount and book value at the end of the second and fifth years using the straight line (SL) depreciation schedule method. Assume I =9%