Mather Company owns a building that appeared on its balance sheet at the end of last year at its original \(\$ 456,000\) cost less \(\$ 328,320\) accumulated depreciation. The building has been depreciated on a straight-line basis under the assumption it would have a 25 -year life and no salvage value. During the first week in January of the current year, major structural repairs were completed on the building at a \(\$ 144,000\) cost. The repairs did not improve the building's usefulness but they did extend its expected life for 13 years beyond the 25 years originally estimated.

(a) Determine the building's age on last year's balance sheet date.

(b) Give the entry to record the cost of the repairs.

(c) Determine the book value of the building after its repairs were recorded.

(d) Give the entry to record the current year's depreciation.