Answer:
predetermined overhead rate per machine hour $2.10
Step-by-step explanation:
The overhead rate will be calculate as the sum of the expected cost divide by a cost driver in this case; machine hours
Overhead expected cost:
rent on factory building 13,500
depreciation on factory equipment 6,500
indirect materials 10,000
insuance on factory equipment 12,000
Total overhead 42,000
machine hours 20,000
42,000 / 20,000 = 2.10