Kansas Enterprises purchased equipment for $79,000 on January 1, 2021 The equipment is expected to have a ten year service life, with a residual value of $9.000 at the end of ten years. 4 Using the double declining balance method, depreciation expense for 2021 would be (Do not round your intermediate calculations) 3 pos Multiple Choice $7900 O $4.000 o $6.00 $15 800