Total costs are $180,000 when 10,000 units are produced; of this amount, variable costs are $64,000. What are the total costs when 12,000 units are produced? Assume the new quantity is within the relevant range. Select one: a. $116,000 b. $216,000 c. None of the answers given d. $199,200 e. $192,800 Which of the following is an indirect cost of manufacturing scooters? Select one: a. Brakes b. Supervisor salary. c. Wheels d. Scooter assembly wages