3. Elberz Enterprise uses a straight-line method to assess depreciation. The company's machinery account included the following machines, purchased on the dates indicated: August 1, 2016 machine A; cost $20,000 January 1, 2017 machine B; cost $16,000 . July 1, 2018 machine C; cost $24,000 Each machine was expected to be used for four (4) years. January 1, 2017 machine B; cost $16,000 July 1, 2018 machine C; cost $24,000 = Each machine was expected to be used for four (4) years. Calculate the depreciation provision for machinery for each year, 2016 to 2018. (10 marks)