hello, question 2 (c-sum of years) is what i am most concerned with

Question One: 20% Explain the difference between depreciation, depletion, and amortization. Question two: 80 % Lockard SE purchased machinery on January 1, 2019, for 80,000. The machinery is estimated to have a residual value of 8,000 after a useful life of 10 years. Compute the deprecation expense for year 1 and year 2 using the following methods: a- Straight line b- Double declining C- Sum of years