Please help with all 4 questions. thanks.

Medusa Products is a manufacturing company that operates a job-order costing system Overhead costs are applied to jobs on the basis of machine hours. At the beginning of the year management estimated that the company would incut $170,000 in manufacturing overhead costs for the year and work 85,000 machine hours Required: Compute the company's predetermined overhead rate Predetermined Overhead Rate = 2.00/hour Assume that during the year the company actually works only 80,000 machine hours and incurs the following costs in the Manufacturing Overhead and Work in Process accounts Manufacturing Overhead Work in Process (Utilities) (Insurance) Maintenance) (Indirect minerals (litect labore (Depression) 530.000 85.000 14.000 9,000 33,000 7,000 65,000 40,000 Dect Materials) (Direct Labo) (Overbread) Compute the amount of overhead cost that would be applied to Work in Process for the year, and prepare the joumal entry. Also post the amount to the T-accounts above. Debit Account Amount Credit Account Amount 3 Compute the amount of under-or-overapplied overhead (indicate if it is under or over-applied) for the year, and show the balance in your Manufacturing Overhead T account Prepare a journal entry to close out the balance in this account to Cost of Goods Sold Debit Account Amount Credit Account Amount 4 Explain why the manufacturing overhead was underapplied or overapplied for the year