I need

A) straight line for 2011

B) Units-of-activity for 2011, assuming machine usage was 2,000 hours.

C) Declining-balance using double the straight-line rate for 2011 and 2012.

For c I already have 13810 for 2011

Kelm Company purchased a new machine on October 1, 2011, at a cost of $138,100. The company estimated that the machine will have a salvage value of $11,500. The machine is expected to be used for 11,200 working hours during its 5-year life. Compute the depreciation expense under the following methods for the year indicated