The Jessica Co. has the following errors on its books as of December 31,2020 . The books for 2020 have not yet been closed. a. On January 1, 2018, a machine had been purchased for $6,500. The machine had an estimated life of five years, but it was expensed in error. Straight-line depreciation with no salvage value should have been used. b. On January 1,2019 , the company bought a four-year insurance policy for $800 and immediately charged the full premium to expense. Required: Prepare joumal entries to correct these errors on December 31, 2020. Ignore income taxes. Prepare joumal entries to correct these errors on December 31, 2020. Ignore income taxes. General Joumal instructions