Calculate depreciation expense using straight line method, double dimnishing method and unit of production of year 2020 and 2021

On July 1, 2020 Sweet Acacia's Greenhouse purchased a new delivery truck for $100,000. Sweet Acacia estimates that the delivery truck will have a five-year useful life, or 180,000 kilometres, and a residual value of $10,000. Sweet Acacia's Greenhouse has a December 31 year end. Sweet Acacia drove the truck 15,000 kom in 2020 and 39,000 km in 2021