Sam Bio has the following balances in selected accounts on December 31, 2021. Notes Payable Prepaid Rent Supplies Equipment Unearned Service Revenue 45,000 6,000 7,600 840,000 49,000 The information below has been gathered at December 31, 2021. Instructions: Prepare the adjusting entries at the end of 2021 for the items listed below. 1. On January 1, Sam Bio purchased equipment for $840,000. The straight-line depreciation method is used with an estimated useful life of 5 years and a residual value of $40,000. 2. Sam Bio paid $6,000 for 12 months of rent starting on October 1, 2021. 3. A physical count of office supplies on hand at the end of the year indicates that supplies of $2,800 are on hand. 4. Sam Bio discovered the following error made in December 2021: A collection of $3,000 from a client on account was debited to Cash $300 and credited to Service Revenue $300.