Straight-Line Depreciation A building acquired at the beginning of the year at a cost of $2,200,000 has an estimated residual value of $400,000 and an estimated useful life of 20 years. Determine the following: (a) The depreciable cost $fill in the blank 1 (b) The straight-line rate fill in the blank 2 % (c) The annual straight-line depreciation $fill in the blank 3