Elkins Corporation uses the perpetual inventory method. On March 1, it purchased $30,000 of inventory, terms 2/10, n/30. On March 3, Elkins returned goods that cost $3,000. On March 9, Elkins paid the supplier. On March 9, Elkins should credit:.a. inventory for $540. b. inventory for $600.
c. purchase discounts for $540.
d. purchase discounts for $600.

Ann chovies, owner of the perfect pasta pizza parlor, uses 20 pounds of pepperoni each day in preparing pizzas. order costs for pepperoni are $10.00 per order, and carrying costs are 4 cents per pound per day. lead time for each order is three days, and the pepperoni itself costs $3.00 per pound. if she were to order 80 pounds of pepperoni at a time, what would be the average inventory level?