A machine costing $180,000 has an estimated residual value of $15,000 and an estimated service life of ten years. What is the annual depreciation for each of the first two full years under the following methods?Please show all work.

1. Double declining-balance:

a. Year one $______________

b. Year two $______________

2. Units of production. Lifetime production is estimated at 110,000 units; the machine produced 12,000 units in Year one and 18,000 in Year two:

a. Year one $______________

b. Year two $______________

3. Straight-line depreciation method:

a. Year one $______________

b. Year two $______________