2) Dandy Inc. has straight-line annual depreciation expense of $700 for equipment that cost $16,000 and has a $2,000 residual value. What is the useful life of the equipment? 3) Garner Company has depreciation expense of $400 for the year. The depreciation relates to a delivery scooter with a residual value of $2,000 and a useful life of 30,000 miles. The scooter was driven for 1,000 miles this year. What is the original cost of the scooter