An equipment costs $100,000, has a useful life of 5 years and has zero salvage value at the end of its useful life. Determine the depreciation allowance for the first two years and book value at the end of year 1 and year 2 for the following methods.
a) Straight-line depreciation (no half-year convention)
b) Double Declining-balance depreciation (no half-year convention)
c) (MACRS-GDS 5-year property.