hello I have attached a word doc I need help figuring how to find out double Declining Balance method for 2017, 2018, I have figured all other answers. thanks need it within the next 20 minutes.

Exercise 9-7 (Part Level Submission) Linton Company purchased a delivery truck for $32,000 on January 1, 2017. The truck has an expected salvage value of $1,200, and is expected to be driven 108,000 miles over its estimated useful life of 5 years. Actual miles driven were 16,900 in 2017 and 11,800 in 2018. (a1) Your answer is correct. Calculate depreciation expense per mile under units-of-activity method. (Round answer to 2 decimal places, e.g. 0.50.) Depreciation expense $ per mile 0.29 Show List of Accounts Show Solution Show Answer Link to Text Attempts: 1 of 3 used (a2) Your answer is partially correct. Try again. Compute depreciation expense for 2017 and 2018 using (1) the straight-line method, (2) the units-of-activity method, and (3) the double-declining-balance method. (Round depreciation cost per unit to 2 decimal places, e.g. 0.50 and depreciation rate to 0 decimal places, e.g. 15%. Round final answers to 0 decimal places, e.g. 2,125.) Depreciation Expense 2017 (1 Straight-line method ) (2 Units-of-activity method ) (3 Double-declining-balance method ) 2018 $ 6,160 $ 6,160 $ 4,901 $ 3,422 $ 6,400 $ 5,120