Ouring 2019 and 2020 , the machinery was used 7,050 and 7.500 hours, respectively. This information will be used foe Parts. 1.2. and 3 of this problem. If will be repeated in each part. Calculate the depreciation expense for 2019 using the straight-line method. What is the book value on Dec. 31,2019 , after the adjusting entry (straight-line)? Show your calculations Book Value, Dec 31, 2019 Straighteline Method What is the book value on Dec. 31,2020 after the second year's adjusting entry (straight-line)? Show your calculations Book Value, Dec 31,2020 Straight-Line Method