Kansas Enterprises purchased equipment for $73,500 on January 1, 2021. The equipment is expected to have a ten-year service life, with a residual value of $6,900 at the end of ten years. Using the double-declining balance method, depreciation expense for 2021 would be: (Do not round your intermediate calculations) Multiple Choice $7,800 O $7,350. O O $13,320. $14,700. O