Cuestien 4i Hammer Inc, had the following activities during 2012 (10 Points) Direct materials Beginning inventory Purchases Ending inventory Direct manufacturing laber Manufacturing overhead Beginning work-in-process inventory1000 Ending work-in-process inventory Beginning finished goods inventory 24,000 Ending finished goods inventory S 10,000 10,400 10,000 5,000 4,000 6,000 Required: a. What is the cost of direct materials used during 20122 b. What is cost of goods manufactured for 20127 What is cost of goods sold for 2012? c. What amount of prime costs was added to production during 2012? d. What amount of conversion costs was added to production during 2012? e