Hathaway Corporation purchased a new delivery truck for $45,000 on April 1, 2020. The truck is expected to have a service life of 10 years or 120,000 miles and a residual value of $3,000. The truck was driven 10,000 miles in 2020 and 13,000 miles in 2021. The company computes depreciation to the nearest whole month.

Instructions: Compute depreciation for 2020 and 2021, rounding your answers to the nearest whole dollar. Please show work

a. Straight-line method

b. Sum-of-the-years-digits method

c. Double declining balance method

d. Units of output or Activity method