Kims asphalt does driveway and parking lot resurfacing work

Question

Kim's Asphalt does driveway and parking lot resurfacing work for large commercial clients as well as small residential clients. An inventory of materials and equipment is on hand at all times so that work can start as quickly as possible. Special equipment is ordered as required. On May 1, the Materials and Equipment Inventory account had a balance of $36,000. The Work-in-Process Inventory account is maintained to record costs of work not yet complete. There were two such jobs on May 1 with the following costs: 

Overhead has been applied at 30 percent of the costs of direct labor. During May, Kim's Asphalt started two new jobs. Additional work was carried out on Jobs 27 and 33, with the latter completed and billed to Pine Ridge Estates. Details on the costs incurred on jobs during May follow:

Other May Events 

1. Received $12,500 payment on Job 24 delivered to customer in April. 

2. Purchased materials and equipment for $9,400. 

3. Billed Pine Ridge Estates $130,000 and received payment for $75,000 of that amount.

4. Determined that payroll for indirect labor personnel totaled $650. 

5. Issued supplies and incidental materials for current jobs costing $155. 

6. Recorded overhead and advertising costs for the operation as follows (all cash except equipment depreciation):

Property taxes . . . . . . . . . . . . . . . . . . . . . . . . . . . . $550
Storage area rental . . . . . . . . . . . . . . . . . . . . . . . . 675
Truck and delivery cost . . . . . . . . . . . . . . . . . . . . . 320
Advertising and promotion campaign . . . . . . . . . . 600
Inspections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200
Telephone and other miscellaneous . . . . . . . . . . . 325
Equipment depreciation . . . . . . . . . . . . . . . . . . . . 450

Required :
a. Prepare journal entries to record the low of costs for operations during May. 
b. Calculate the amount of over or underapplied overhead for the month. This amount is debited or credited to Cost of Goods Sold. 
c. Determine inventory balances for Materials and Equipment Inventory and Work-in ProcessInventory.