=+1. Determine the annual depreciation expense for each of the estimated four years of use, the accumulated depreciation at the end of each year, and the book value of the equipment at the end of each year by

(a) the straight-line method and

(b) the doubledeclining-balance method. The following columnar headings are suggested for each schedule:

Accumulated Depreciation Depreciation, Book Value, Year Expense End of Year End of Year