Question 5: Office equipment was purchased on January 1, 20X1, for $175,000, which is estimated to have a $29,000 salvage value and 5 years of useful life. How much would the depreciation expense be in 20X3" using a double-declining balance method? Use the DDB formula. Question 6: Assume the same details as Question 5, except that you want to find how much would the office equipment's "depreciation expense be in 20X4." Use the DDB formula.