Polk Corp. purchased new store fixtures for $55,000 on January 31, 2012. Polk depreciates assets using the straight-line method and estimated a salvage value for the machine of $5,000. On its December...

Polk Corp. purchased new store fixtures for $55,000 on January 31, 2012. Polk depreciates assets using the straight-line method and estimated a salvage value for the machine of $5,000. On its December 31, 2014, balance sheet, Polk reported the following:

Required

1. What is the yearly amount of depreciation expense for the store fixtures?

2. What is the estimated useful life in years for the store fixtures? Explain your answer.