Question 2 The company purchases a patent for $500,000 on October 1, 2019. It expects its effective life to be ten years. The amortization expense for 2019 is. O $12,500 O $25,000 $10,000 O $50,000 Question 20 Equipment purchased October 1, 2018 for $90,000 has an estimated residual value of $6,000 and an estimated life of 4 years. What is the depreciation expense for the year ended December 31, 2019 using Double Dedining Balance? $45.000 $11,250 0 530.000 $39,375 Question 4 A machine with a cost of $65,000 has an estimated residual value of $5,000 and an estimated life of 4 years or 15,000 hours. It is depreciated using straight line depreciation what the depreciation expense for the first full year? $12.000 O 515,000 $21,667 $20,000