Here are selected 2017 transactions of Monty Corporation. Jan. 1 Retired a piece of machinery that was purchased on January 1, 2007. The machine cost $61,800 and had a useful life of 10 years with no salvage value. June Sold a computer that was purchased on January 1, 2015. The computer cost $36,000 and had a useful life of 4 years with no salvage value. The 30 computer was sold for $4,000 cash. Dec. Sold a delivery truck for $9.400 cash. The truck cost $23,800 when it was purchased on January 1, 2014, and was depreciated based on a 5-year 31 useful life with a $3,700 salvage value. Journalize all entries required on the above dates, including entries to update depreciation on assets disposed of, where applicable. Monty Corporation uses straight-line depreciation. (Record entries in the order displayed in the problem statement. Credit account titles are automatically indented when amount is entered. Do not indent manually. If no entry is required, select "No Entry" for the account titles and enter O for the amounts.) Date Account Titles and Explanation Debit Credit (To record depreciation expense for 2017) (To record sale of computer) (To record sale of computer) (To record depreciation expense for 2017) (To record sale of delivery truck)