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Shown below are the T accounts relating to equipment that a company purchased for cash on the first day of the current year. The T accounts show the balance in the accounts on January 1 along with the effects of transactions recorded on December 31 of the current year. The company depreciates equipment on a straight-line basis with an estimated useful life of 10 years and a residual value of $140. Part of the equipment was sold on the last day of the current year for cash proceeds while the remaining equipment that was not sold became impaired. No. Date Account Titles and Explanation Debit Credit a. Jan. 1 b. Dec. 31 C. Dec. 31 d. Dec. 31 \begin{tabular}{|c|c|c|c|} \hline \multicolumn{4}{|c|}{ Cash } \\ \hline \multirow{2}{*}{\multicolumn{2}{|c|}{ Dec. 31}} & Jan. 1 & (a) \\ \hline & & & \\ \hline \multicolumn{4}{|c|}{ Equipment } \\ \hline \multirow[t]{2}{*}{ Jan. 1} & \multirow[t]{2}{*}{1,890} & \multirow[b]{2}{*}{ Dec. 31} & \\ \hline & & & 756 \\ \hline \multicolumn{4}{|c|}{ Accumulated Depreciation-Equipment } \\ \hline & & Dec. 31 & 175 \\ \hline Dec. 31 & 70 & Dec. 31 & 54 \\ \hline \multicolumn{4}{|c|}{ Depreciation Expense } \\ \hline Dec. 31 & (b) & & \\ \hline \multicolumn{4}{|c|}{ Gain on Disposal } \\ \hline & & Dec. 31 & (c) \\ \hline \multicolumn{4}{|c|}{ Impairment Loss } \\ \hline \end{tabular} Dec. 31 (d)