The manager of the personnel department at city enterprises has been reading about time-driven abc and wants to apply it to her department. she has identified four basic activities her employees spend most of the their time on: interviewing, hiring, assessment, and separation processing. the department employs 21 staff who perform these activities. the manager provides the following estimates for the amount of time it takes to complete each of these activities: interviewing: 61 minutes. hiring: 76 minutes. assessment: 107 minutes. separation processing: 106 minutes. employees in personnel work 51-hour weeks with four weeks for vacation. of the 51 hours, five are reserved for administrative tasks, training, and so on. the costs of the personnel department, including any allocated costs from other staff functions, are $988,000. during the year, personnel conducted 2,800 interviews, made 695 hires, made 6,200 assessments, and had 330 separations. required: a. what is the cost per minute for activities in personnel? (round your answer to 2 decimal places.)b. what is the cost of interviewing and hiring one employee? (round your intermediate calculations and final answers to 2 decimal places.)c. how many minutes of unused capacity did personnel have for the year? d. what was the cost of the unused capacity in personnel? (round your intermediate calculations to 2 decimal places.)