On January 1, 2020 Milky Factory purchased new equipment for $400. The equipment is expected to be used for 1,000 hours over 5 years. Residual value is expected to be $100. During 2020 the equipment was used for 150 hours. Required: Compute the following Depreciable cost Depreciation expense for 2020 using straight-line depreciation Depreciation expense for 2020 using units-of-activity depreciation $