On April 17, 2020, Albany Services purchased a used crane for $128,000. The company expects the crane to remain useful for six years (700 hours ofuse) and to have a residual value of $8,000. The company expects the crane to be used for 110 hours until December31, 2020, thecompany's year-end.

Compute the amortization expense for 2020 using the following amortizationmethods: (a) straight line, (b)UOP, and(c) DDB.