Bierce Corporation has two manufacturing departments-Machining and Finishing. The company used the following data at the beginning of the year to calculate predetermined overhead rates (12 points): Estimated total machine-hours (MHs) Estimated total fixed mfg overhead cost Estimated variable mfg overhead cost per MH Required: a. Assume that the company uses a plantwide predetermined manufacturing overhead rate based on machine-hours. Calculate that overhead rate. (Round your answer to 2 decimal places.) b. Assume that the company uses a plantwide predetermined manufacturing overhead rate based on machine-hours. Calculate the amount of manufacturing overhead applied to Job B. (Do not round intermediate calculations.)