Jefferson. Inc. produces two different products (Product 5 and Product Z) using two different activities: Machining, which uses machine hours as an activity driver, and Inspection, which uses number of batches as an activity driver. The cost of Machining is $104,000. while the cost of Inspection is $41, 080. The activity drivers are used as follows: What proportion of Machining activity is used by Product 5? 20% 72% 28% 80%