A global positioning system $($GPS$)$ receiver is purchased for $$5$ comma $500.$ The IRS informs your company that the useful $($class$)$ life of the system is eight years. The expected market $($salvage$)$ value is $$500$ at the end of year eight. a$.$ Use the straight line method to calculate depreciation in year three.b$.$ Use the $200\%$ declining balance method to calculate the cumulative depreciation through year four.c$.$ Use the MACRS method to calculate the cumulative depreciation through year five.d$.$ What is the book value of the GPS receiver at the end of year four when straight line depreciation is used?