19) 17) Sybil Inc. uses a predetermined overhead allocation rate to allocate manufacturing overhead costs to jobs. The company recently completed Job 300X. This job used 12 machine hours and 3 direct labor hours. The predetermined overhead allocation rate is calculated to be $45 per machine hour. What is the amount of manufacturing overhead allocated to Job 300X using machine hours as the allocation base? A) $540 B) $135 C) $675 D) $405 20) Managerial accounting includes the planning function. Which of the following items would be part of the planning function of a business's managerial accounting? A) comparing actual performance to previously budgeted amounts B) creating detailed budgets C) implementing operational plans D) evaluating results of operations