Determine whether each of the following costs would be classified as p costs under a variable-costing system: Administrative expenses - fixed Period Cost Glue for wooden chairs - variable Product Cost Factory rent expense - fixed Period Cost Labour costs for producing TVs Product Cost = Car mileage for salespersons Choose... Factory utility costs - variable Choose... . Wages - assembly line Choose... Administrative Internet connection fees Period Cost Commission fees for salespersons Choose... Fabric for T-shirts Product Cost