Hightower Company has a job-order costing system. The company applies manufacturing overhead to jobs using a predetermined overhead rate base o direct labor cost. The information below has been taken from the cost records of Hightower Company for the past year.

1. Hightower Company has a job-order costing system. The company applies manufacturing overhead to jobs using a predetermined overhead rate based on direct labor cost. The information below has been taken from the cost records of Hightower Company for the past year: Direct materials used in production $1,250 Total manufacturing costs charged to production during the year (includes direct materials, direct labor, and applied manufacturing overhead) Manufacturing overhead applied Selling and administrative expenses Inventories: 6,050 $2,800 $1,000 Direct materials, January 1 Direct materials, December 31 Work in process, January 1 Work in process, December 31 Finished goods, January 1 Finished goods, December 31 $130 $80 $250 $400 $300 $200 Required a. Compute the cost of direct materials purchased during the year. b. Compute the predetermined overhead rate that was used during the past year. c. Compute the Cost of Goods Manufactured for the past year. d. Compute the unadjusted Cost of Goods Sold for the past year