A job cost sheet of Swifty Company is given here. Answer the following questions. (a) What are the source documents for direct materials, direct labor, and manufacturing overhead costs assigned to this job? (b) What is the predetermined manufacturing overhead rate? (Round answer to o decimal ploces eg 135.) Predetermined manuf acturing overhead rate (c) What are the total cost and the unit cost of the completed lob? (Round unit cost to 2 decimal places es. 1.25 ) Total cost of the completedjob Unit cost of the completed job $