problem 17-3a applying a activity-based costing craft pro machingin produces machine tools for the construction industry. the following details abou overhead costs were taken from its company records. additional information on the drivers for its production activities follows. 1.classify each activity as unit level, batch level, product level, or facility level. 2. compute the activity overhead rates using ABC. Combine the grinding and polishing activities into a singe cost pool. 2. determine overhead costs to assign to the following jobs using ABC. 4. what is the overhead cost per unit for job3175