i just need part b for this part and the last qestion thank you

Problem 11-11 (Part Level Submission) On January 1, 2015, a machine was purchased for $97,200. The machine has an estimated salvage value of $6,480 and an estimated useful life of 5 years. The machine can operate for 108,000 hours before it needs to be replaced. The company closed its books on December 31 and operates the machine as follows: 2015, 21,600 hrs; 2016, 27,000 hrs; 2017, 16,200 hrs; 2018, 32,400 hrs; and 2019. 10,800 hrs. (a) | Your answer is correct. Compute the annual depreciation charges over the machine's life assuming a December 31 year-end for each of the following depreciation methods. (Round answers to O decimal places, e.g. 45,892.) (1) Straight-line Method 18144 (2) Activity Method Year 2015 2016 2017 2018 2019 18144 22680 13608 27216 9072 (3) Sum-of-the-Years'-Digits Method