old and P6-2A Mullins Distribution markets CDs of numerous performing artists. At the begin- FO, ning of March, Mullins had in beginning inventory 2,500 CDs with a unit cost of s7. Dur. ing March, Mullins made the following purchases of CDs. March 5 2,000 $8 March 21 5,000 C S10 March 13 3,500 $9 March 26 2,000 C S11 During March 12,000 units were sold. Mullins uses a periodic inventory system. Instructions 000 (a) Determine the cost of goods available for sale. 15,500 (b) Determine (1) the ending inventory and (2) the cost of goods sold under each of the o, and average cost). Prove the accuraovofthe