Answer:
$9,400
Explanation:
We know,
predetermined overhead rate for machine hour = 
Given,
Total overhead cost = $690,900
Total machine hours = 1,470
Putting the values into the formula, we can get
predetermined overhead rate for machine hour = 
predetermined overhead rate for machine hour = $470
When we use a separate job, the overhead cost will be = predetermined overhead rate × total hours used by the job.
The amount of overhead should be applied to Job 65A if that job uses 20 machine hours during January = 20 hours × $470 = $9,400