On July 1, 2020 Bonita's Greenhouse purchased a new delivery truck for $50,000. Bonita estimates that the delivery truck will have a five-year useful life.or 150.000 kilometres, and a residual value of $5.000. Bonitas Greenhouse has a December 31 year end. Bonita drove the truck 10.000 km in 2020 and 30,000 km in 2021 (a) Calculate depreciation expense using the straight-line method for 2020 and 2021 2020 2021 s Depreciation Expense $