brian is trying to analyze his income and expenses for the past week. he comes across an invoice from the local parts store for a circuit board for a carrier furnace. he knows he needed the part to fix mrs. crow's furnace last week. what type of an expense is the circuit board? brian is trying to analyze his income and expenses for the past week. he comes across an invoice from the local parts store for a circuit board for a carrier furnace. he knows he needed the part to fix mrs. crow's furnace last week. what type of an expense is the circuit board? indirect expense direct expense fixed expense overhead expense