Suppose a manufacturer needs to place a one-time order of 3,000 units of a component. Supplier A offers an all-unit discount for the component and charges $10 per unit for orders of no more than 1,000 units and $9 per unit for any other order sizes. What is the average cost per unit of the order of 3,000 units? $9 $8 $8.5 $9.5