Oman Marble Company has two processing departments. Cutting and Polishing. The company uses a multiple predetermined overhead rate in each processing department under job-order costing system. The Cutting Department's predetermined overhead rate is based on machine hours and the Polishing Department's predetermined overhead rate is based on direct labor cost At the beginning of the current period, the company records show the following estimated information Polishing Cutting S Direct Labor cost per hour 10,000 Direct laber-hours 5.000 20.000 Machine hours 40,000 $100,000 Total fixed manufacturing overhead cost 4 SEE Variable manufacturing overhead per machine-hour Variable manufacturing overhead per direct labor-hour During the current period the company started and finished a job order number 3122. The job cost sheet shows the following data for this job Polishing Cutting Job3122 90 Machine-hours Direct labor-hours 250 Direct materials na Direct labor cost :The total job cost for Job3122 is closest to None of the nswer 9210 $ ab 8,000 $ 7.150 $ de