Adjustment data: a. Accrued advertising revenue at October 31, $2,900 b. Prepaid rent: The unadjusted prepaid balance of $4,000 relates to the period October 2019 through January 2020. c. Supplies on hand at year end: $200 d. Depreciation on computers. The computers' expected useful life is three years. e. Accrued salary expense at October 31 for Monday through Thursday; the five-day weekly payroll is $2,000.