Calculate the following:

a. The first year of depreciation on a residential rental building costing 200,000 purchased on May 2, 2012.

b. The second year of depreciation on a computer costing 3,000 purchased in May 2011, using the half year convention and accelerated depreciation

c. The first year of depreciation on a computer costing 4,000 purchased in May 2012, use half year convention, straight-line depreciation

d. The third year of depreciation on business furniture costing 10,000 purchased in March 2010, using half-year convention and accelerated depreciation