Answer:
Predetermined overhead rate=$9
Applier overhead=$454,500
Explanation:
The predetermined overhead rate shall be determined on the basis of the estimated labour hours and shall be calculated using the following formula:
Predetermined overhead rate=estimated overhead cost/estimated hours
                       =450,000/50,000 Â
                       =$9 per hour
Applier overhead=Predetermined overhead rate*Direct labour hours
             =9*50,500
             =$454,500