A firm has fixed assets at the end of 2015 of $5,000 and accumulated depreciation of $1,250. At the end of 2016, fixed assets are $5,100 and accumulated depreciation is $1,500. Which of the following statements MUST be true. a. The firm purchased exactly $100 in fixed assets during 2016, Net fixed assets increased over the year 2016. The net fixed assets at the end of 2015 were $6,250 The 2016 depreciation expense was $250 b