2. Assume that AlArabi's controller believes that machine-hours is a better allocation base than direct labor-hours. Under this approach: a. Compute the plantwide predetermined overhead rate. b. Compute the total manufacturing cost of Job 373? C. If AlArabi yuses a markup percentage of 200% of its total manufacturing cost, what selling price would it establish for Job 373? Activity 1: AlArabi Corporation uses a job-order costing system. At the beginning of the year, the company made the following estimates: ON SO Direct labor-hours required to support estimated production 120,000 Machine-hours required to support estimated production 60,000 Fixed manufacturing overhead cost $740,000 Variable manufacturing overhead cost per direct labor-hour $2.00 Variable manufacturing overhead cost per machine-hour $4.00 During the year, Job 373 was started and completed. The following information is available with respect to this job: Direct labor cost $205 Direct materials Direct labor-hours Machine-hours Required