Equipment acquired at the beginning of the year at a cost of $125,000 has an estimated residual

Question:

Equipment acquired at the beginning of the year at a cost of $125,000 has an estimated residual value of $5,000 and an estimated useful life of eight years. Determine
(a) The depreciable cost,
(b) The straight-line rate, and
(c) The annual straight-line depreciation.