The balance sheets of Tully Corp. showed the following at December 31, 2017, and 2016:

	December 31, 2017			December 31, 2016
Equipment, less accumulated depreciation of $111,400 at December 31, 2017, and $69,625 at December 31, 2016.	$	83,800		$	125,575

a. If there have not been any purchases, sales, or other transactions affecting this equipment account since the equipment was first acquired, what is the amount of depreciation expense for 2017?

Assume the same facts as in part a, and assume that the estimated useful life of the equipment is four years and the estimated salvage value is $28,100.

b-1. What was the original cost of the equipment?

b-2. What depreciation method is apparently being used?

	Straight-line method
	Double-declining balance method
	Written down value method
	Sum-of-the-years' digits method
	Units of production method

b-3. When the equipment was acquired?

	May 1, 2015
	July 1, 2014
	August 1, 2015
	June 1, 2014
	May 1, 2014