18,19,20 help!!

Leonard Company purchased a machine that cost \$50350, has an estimated residual value of \$6193, and has an estimated useful life of 8 years: Using the straiaht line method of depreciation, the book value at the end of year 3 is $ QUESTION 19 Parker Company purchased a machine that cost $99533, has an estimated residual value of $14400, and has an estimated useful life of 46800 machine hours. The company ran the machine 5114 hours in year 1, 7308 hours in year 2 , and 9551 hours in year 3. Assuming Parker used the units of production method, what is the depreciation expense for year 2?$ QUESTION 20 Parker Company purchased a machine that cost $168575, has an estimated residual value of $11800, and has an estimated useful life of 53000 machine hours. The company ran the machine 5989 hours in year 1. 7361 hours in year 2, and 9763 hours in year 3. Assuming Parker used the units of production method, what is the accumulated depreciation at the end of year 2