1. Mosbius Design Company purchased a computers for $75,000 in 2013. It is estimated those computers will have a $7,000 residual value at the end of their 5-year useful service life. The double declining-balance method of amortization will be used. a.) Prepare an amortization schedule, which shows the annual amortization expense on the computer for its 5-year life. b.) Record the amortization expense for the year end of the first year (2013).