Crawford Company paid \(\$ 60,000\) for a machine on April 1, 1998, and placed it in use on that same date. The machine has an estimated life of 10 years and an estimated salvage value of \(\$ 10,000\).

Compute the amount of depreciation to the nearest dollar the company should record on this asset for the years ending December 31, 1998, and 1999, under each of the following methods:

a. Straight-line.

b. Sum-of-the-years'-digits.

c. Double-declining-balance.