really need help with these three, thanks

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Panamint Systems Corporation is estimating activity costs associated with producing disk drives, tapes drives, and wire drives. The indirect labor can be traced to four separate activity pools. The budgeted activity cost and activity base data by product are provided below Procurement Scheduling Materials handling Product development Production Activity Cost $350,000 $224,000 $472,600 $725,600 $1,496,500 Activity Base Number of purchase orders Number of production orders Number of moves Number of engineering changes Machine hours Number of Purchase Orders 4,040 2,100 Number of Production Orders 380 245 880 Number Number of Engineering Changes Number Machine Hours 2,000 9,000 10,900 Units 2,200 4,500 2,300 Moves Disk drives Tape drives Wire drives Determine the activity rate for materials handling per move . $68.33 Ob. $19.29 Oc. $148.84 Od. $85.46 1,390 10 640 12,000 3,500 23