Answer:
Job 301 $ 11,000
Job 302 $ 16,500
Job 303 $ 22,000
Step-by-step explanation:

To calculate the overhead rate we divide the estimated overhead cost by the estimated cost driver:

0.55 overhead rate
Job 301 $20,000 labor cost x 0.55 overhead rate
11,000
Job 302 $30,000 labor cost x 0.55 overhead rate
16,500
Job 303 $40,000 labor cost x 0.55 overhead rate
22,000