Robin Company has the following balances for the current month: Direct materials used EA 15,000 Direct labor 20,000 Sales salaries 12,000 Depreciation on factory 2,000 Indirect labor 9,000 Production manager's salary 11,000 Marketing costs EA 10,000 Factory lease EA 4,000 What is Robin's total manufacturing overhead? QUESTION 29 Refer to Robin Company. What is Robin's prime cost? QUESTION 30 Refer to Robin Company. What is Robin's conversion cost? QUESTION 31 Refer to Robin Company. What is Robin's period cost