Please answer #1 and #2

1. The Antarctica Co. acquired a machine on January 1, 2016, at a cost of $60,000. The machine is expected to have a ten-year life and a residual value of $5,000. The estimated lifetime output from the machine is expected to be 55,000 units. Under which of the following depreciation methods would the depreciation charge be the greatest in 2016 if 9,100 units were produced during the year?

	a.	activity (units-of-output) method
	b.	straight-line method
	c.	sum-of-the-years'-digits method
	d.	double-declining-balance method

2. Mark Industries uses the straight-line depreciation method. One asset had been purchased for $11,000. Annual depreciation expense was $2,000 after considering residual value of $1,000. What was the estimated useful life of the asset?

	a.	5.50 years
	b.	5.00 years
	c.	10.00 years
	d.	11.00 years