a. A machine was purchased on January 1 for $50,000. The machine has an estimated useful life of 10 years, with a salvage value of $2,000. Under the double-declining-balance, depreciation expense for each of the first two years is, respectively,:

$12,000 and $12,000.

$10,000 and $8,000.

$12,000 and $9,500.

$12,500 and $12,500.

b.

A machine was purchased on January 1 for $100,000. The machine has an estimated useful life of five years, with a salvage value of $20,000. Under the straight-line method, the book value and the accumulated depreciation of the machine at the end of year two are, respectively,

		$60,000 and $40,000.
		$68,000 and $32,000.
		$40,000 and $60,000.
		$48,000 and $32,000.
		None of these choices is correct.