help with thus please

Part B - Unit 2 - Accounting for Assets (Amortization) the Tolbert Company purchased equipment on January 1, 2020, for $60,000. It is estimated that equipment will have a $5,000 residual value at the end of its 5-year useful life. It is also estimated that the equipment will produce 100,000 units over its 5-year life. Instructions: Answer the following independent questions. a) Calculate the amount of amortization expense for the year ended December 31, 2020, using the straight-line method of amortization. (2 marks) b) The company uses the units-of-activity amortization method. Given that 16,000 units of product are produced in 2020 and 24,000 units are produced in 2021, calculate the amount of amortization expense for the years ended 2020 and 2021. What is the book value of the equipment at December 31, 2021? (7 marks)