Please show all steps in order to find the solution. I need help visually seeing each step with explaination on what I did wrong on these questions.

A)- Manny purchased for $ 88,923 on May 1, 2004. It was estimated that it would have an $ 2,980 salvage value at the end of its 15-year useful life. Rounding to the nearest one dollar, what is the depreciation expense recorded in year one using straight-line depreciation?

B)-Company purchased equipment for $55,945 on January 1, 2004, and will use the double-declining-balance method of depreciation. It is estimated that the equipment will have a 10-year life and an $2,711 salvage value at the end of its useful life. Rounding to the nearest one dollar, what is the book value of the equipment on January 1, 2005?

C) - Company uses the units-of-activity method in computing depreciation. A new machine is purchased for $ 76,974 that will produce an estimated 236,580 units over its 13-year useful life. Estim salvage value at the end of its useful life is $2,790. If 11,995 units were produced this year, what is the depreciation expense?

D) - What is the issue price (amnt of $ the sellers will receive) of a $ 99,820 face value bond with a stated price of 95, 10%, 17-year, semiannual interest payments, rounding to one dollar?

I need to see how to correctly do the problem for future similar problems because I got this wrong. Thanks!