10. Complex Company has the following estimated costs for next year Direct materials Direct labor Sales commissions Salary of production supervisor Indirect materials Advertising expense Rent on factory equipment $16,000 S50,000 90,000 $40,000 $8,000 S12,000 $22,000 Complex estimates that 15,000 direct labors and 20,000 machine-hours will be worked during the yea applied on the basis of machine-hours, the predetermined overhead rate per machine hour will be: a. $3.6 b. $3.5 C. $3.7 d. $4.0 e. None of the above r. If overhead is