Onslow Co. purchases a used machine for $192,000 cash on January 2 and readies it for use the next day at a $8,000 cost. On January 3, it is installed on a required operating platform costing $1,600, and it is further readied for operations. The company predicts the machine will be used for six years and have a $23,040 salvage value. Depreciation is to be charged on a straight-line basis. On December 31, at the end of its fifth year in operations, it is disposed of.

a. Record the first year year-end adjusting entry for the depreciation expense of the used machine.

b.Record the year of disposal year=end adjusting entry for the depreciation expense of the used machine.