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Washburn Company produces earbuds. During the year, manufacturing overhead costs are estimated to be $ 216,000. Estimated machine usage is 2.700 hours. The company assigns overhead based on machine hours. Job No. 551 used 90 machine hours. (21) Compute the predetermined overhead rate. Predetermined overhead rates Attempts: 0 of 1 used Submit Answer Save for Later (a2) The parts of this question must be completed in order. This part will be available when you complete the part above. (a3) The parts of this question must be completed in order. This part will be available when you complete the part above