Seasons Limited paid $135,000 to purchase equipment at the beginning of 2014. Seasons Limited estimated the useful life of the equipment to be 4 years or 200,000 units. The equipment will be considered fully depreciated when the balance in the Accumulated Depreciation account reaches $120,000. The equipment produced 52,000 units in 2017. Required: 1. Determine the estimated residual value of the equipment: 2. Determine the depreciable cost of the equipment 3. Calculate depreciation expense for 2017 under each of the following methods: Straight Line Units of Production Double Declining Balance