Addison, Inc. uses a perpetual inventory system. The following is information about one inventory item for the month of september:

Sep. 1 Inventory 24 units at $15 5 sold 17 units 17 purchased 10 units at $20 30 sold 8 units

If Addison uses weighted Average, the cost of the ending merchandise inventory on September 30 is

a. $143.52 b. $161.46 c. $300.15 d. $340.52

Please help! Due at 11:59 p.m. Thanks!