1 On Jan1, business bought one equipment for $55,000. The estimated useful life is 5 years with no residue value. 2 On Dec31, 2020, Business checked unexpired the insurance policy remaining \$2,030. And business has $25,000 debit balance on prepaid insurance account at Dec31, 2020 before any year-end adjusting entries 3 On Jan1, The business has paid four and half year rent $54,000. Now the first year has passed. Please record the adjusting entry on Dec31, 2020 4 On Jan1, 2020 the business had $820 debit balance. And the additional office supplies $2,530 were purchased during the year. Now on Dec31, 2020, there were only $230 of supplies left over there on hand 5 Three-fourth of the work for $220,000 service fees received in advance has been performed 6 Apr1, 2020 the business bought an auto for $62,000, its estimated useful life is 4 years with residue value $4,000 at the end of its useful life 7 Dec31, 2020 the business found unrecorded and unpaid salary and wages for $8,500. The owing amount will be paid in next week. 8 Please also record the Jan31, 2021 salary 23,000 payment entry, also inclusive of the unpaid salary part at Dec31, 2020 from transaction 7 Please prepare the year-end adjusting entries for the above transactions. If any transaction is calculation related, please also indicate the calculation in details