Answer:
overhead rate: 15
applied overhead 30,000
underapplicatio for 1,000
Explanation:

The manufacturing overhead rate is determinate by dividingthe total expected cost by a cost driver. In this case, the machine hours.
estimated cost 150,000
expected machine hours 10,000
predeterminate overhead rate = 150,000/10,000 = 15
Next, to allocate cost, we multiply the actual value fo the cost driver by the rate
actual machine hours x MO rate
2,000 x 15 = 30,000 applied overhead.
Last, we compare with the actual overhead to determinate over or underapplied overhead:
applied - actual
30,000 - 31,000 = -1,000
Thew overhead was underapplied, as the cost were for 31,000 but we only recognize 30,000