PROBLEM 5.2 (10%) Machine Depreciation Method Acquired Cost Residual Useful Life 1 2 3 Straight-line 01-Apr-18 Double declining balance 01-Jul-19 Units-of-activity 01-Nov-20 Actual use of Machine #3 in 2020 is 4.450 hours. 105.000 150.000 100.000 5.000 10.000 15.000 10 years 8 years 25.000 machine hours Instructions: a. Compute the amount of accumulated depreciation on each machine at December 31, 2020. (8.5%) b. Calculate the net book value of each machine at December 31, 2020. (1.5%)