Journalize the following adjusting entries: (Record debits first, then credits. Exclude explanations from journal entries.) a. Prepaid rent expired, $2,100 b. Supplies used, $950 c. Depreciation on building, $200 d. Service revenue that was collected in advanced and now has been earned, $1,950 e. Accrued salaries expense, $1,550 f. Accrued interest on note, $1,800