How do I start this type of problem?

Exercise 10-06 a-c Culver Company purchased a new machine on October 1, 2020, at a cost of $113,600. The company estimated that the machine will have a salvage value of $13,600. The machine is expected to be used for 10,000 working hours during its 4-year life. (A) Compute the depreciation expense under straightline method for 2020. ( Round answer to 0 decimal places, e.g. 2,125.) 2020 $ Depreciation expense I (b) The parts of this question must be completed in order. This part will be available when you complete the part above. (C) The parts of this question must be completed in order. This part will be available when you complete the part above