*E21-16 Imelda Instrument Inc. manufactures two products: missile range instruments and space pressure gauges. During January, 50 range instruments and 300 pressure gauges were produced, and overhead costs of $81,000 were incurred. An analysis of overhead costs reveals the following activities. Activity Cost Driver Total Cos 1. Materials handling Number of requisitions $30,000 2. Machine setups Number of setups 27,000 3. Quality inspections Number of inspections 24,000 The cost driver volume for each product was as follows. Cost Driver Instruments Gauges Total Number of requisitions 400 600 1,000 Number of setups 150 300 450 Number of inspections 200 400 600 Instructions (a) Determine the overhead rate for each activity. (b) Assign the manufacturing overhead