Company uses a job order costing system and applies manufacturing overhead to jobs using a predetermined overhead rate based on direct labor-hours. Last year, manufacturing overhead and direct labor hours were estimated at $80,000 and 16,000 hrs respectively, for the year. In June, Job was completed. Materials costs on the job totalled $1500 and labor costs toatlled $2400 at $6 per hour. At the end of the year, it was determined that the company worked 15,000 direct labor hours for the year, and incurred &78,000 in acutal manufacturing overhead costs.

a. Determine the predetermined overhead rate for the year.

b. Determine the amount of overhead charged to jobs during the year.

c. Determine the amount of underapplied or overapplied overhead for the year.

d. Assuming that 100 units were completed, determine the unit cost that would appear on the job cost sheet for the job in june.

Please help with computations thanks