Skysong Company has an old factory machine that cost $51,000. The machine has accumulated depreciation of $28,100. Skysong has decided to sell the machine. (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.) (a) What entry would Skysong make to record the sale of the machine for $38,000 cash? (b) What entry would Skysong make to record the sale of the machine for $15,000 cash? (a) (b) Account Titles and Explanation Debit Credit