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6) In describing the cost equation, Y = a + bx, "a" is: A) the total fixed cost. B) the independent variable the level of activity. C) the variable cost per unit of activity. D) the dependent variable cost. 7) The following data pertains to activity and costs for two months: June July Activity level in units 10,000 12,000 Direct materials $16,000 $? Fixed factory rent... 12,000 ? Manufacturing overhead 10,000 Total cost $38,000 $44,900 Assuming that these activity levels are within the relevant range, the manufacturing overhead for July was: A) $19,000 B) $10,000 C) $9,300 D) $11,700 Write your answer in the space provided or on a separate sheet of paper. (3 pts) 8) Saxon Corporation uses a job-order costing system with a single plantwide predetermined overhead rate based on machine-hours. The company based its predetermined overhead rate for the current year on 10,000 machine-hours, total fixed manufacturing overhead cost of $91,000, and a variable manufacturing overhead rate of $2.40 per machine- hour. Job K373, which was for 60 units of a custom product, was recently completed. The job cost sheet for the job contained the following data: Total machine-hours Direct materials Direct labor cost 120 $ 645 $3,720 Required: a. Calculate the estimated total manufacturing overhead for the year. b. Calculate the predetermined overhead rate for the year. c. Calculate the amount of overhead applied to Job K373. d. Calculate the total job cost for Job K373. e. Calculate the unit product cost for Job K373 f. If the markup is 50%, what is the price to the customer for Job K373