Compute the following questions. A machine that cost $28,800 and on which $21,200 of depreciation had been recorded was disposed of for $8.160. Indicate whether a gain or loss should be recorded, and for what amount. Amount of $ Assume that the machine of Part a, above, was instead discarded. Indicate whether a gain or loss should be recorded, and for what amount. Amount of $ Assume that the machine of Part a, above, was instead sold for $7.520. Indicate whether a gain or loss should be recorded, and for what amount. Amount of