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Figure 5-10 The King Corporation manufactures custom-made furniture. The following data pertains to Job X4A: Direct materials placed into production Direct labor hours worked Direct labor rate per hour Machine hours worked $9,000 300 hours $15 100 hours Plantwide overhead rate is $22.50 per machine hour. Refer to Figure 5-10. One-half of Job X4A was sold for $10,000. What is the total amount of costs assigned to Job X4A? a. $9,000o Ob. $20,250 c. $15,750 Od. $13,500