HiI have the following questions that I need help with plz

Ikerd Company applies manufacturing overhead to jobs on the basis of machine hours used. Overhead costs are expected to total $300,000 for the year, and machine usage is estimated at 125,000 hours. For the year, $322,000 of overhead costs are incurred and 130,000 hours are used 1.Compute the manufacturing overhead rate for the year 2.What is the amount of under- or overapplied overhead at December 31? 3. Credit Prepare the adjusting entry to assign the under- or overapplied overhead for the year to cost of goods sold. Account Deb (Credit account titles are automatically indented Titles and it when amount is entered. Do not indent Explanation manually.) Account Titles and Explanation Deb Cred it it question 2/ The ledger of American Company has the following work in process account. Work in ProcessPainting 5/1 Balance 3,590 5/31 5/31 Materials 5,160 5/31 Labor 2,530 5/31 Overhead 1,380 5/31 Balance Transferred out ? ? Production records show that there were 400 units in the beginning inventory, 30% complete, 1,600 units started, and 1,700 units transferred out. The beginning work in process had materials cost of $2,040 and conversion costs of $1,550. The units in ending inventory were 40% complete. Materials are entered at the beginning of the painting process. How many units are in process at May 31? What is the unit materials cost for May? What is the unit conversion cost for May? What is the total cost of units transferred out in May What is the cost of the May 31 inventory? question 3/ Saddle Inc. has two types of handbags: standard and custom. The controller has decided to use a plantwide overhead rate based on direct labor costs. The president has heard of activity-based costing and wants to see how the results would differ if this system were used. Two activity cost pools were developed: machining and machine setup. Presented below is information related to the company's operations. Standard Direct labor costs Machine hours Setup hours Custom $50,000 1,000 100 $100,000 1,000 400 Total estimated overhead costs are $240,000. Overhead cost allocated to the machining activity cost pool is $140,000, and $100,000 is allocated to the machine setup activity cost pool. Compute the overhead rate using the traditional (plantwide) approach. Compute the overhead rates using the activity-based costing approach Determine the difference in allocation between the two approaches. (Round answers to 0 decimal places, e.g. 1,225.) Traditional costing $ Standard $ Custom Activity-based costing $ Standard Custom $ Physical units Materi al conversion cost total Opening WIP 400 0 (0%) 280 (70%) started and completed 1300 1300 1300 transferred out 1700 Closing WIP 300 300 (100%) 120 (40%) EQUIVALENT UNITS --- A 1600 1700 Cost incurred during month-- B $5160 2530+1380=$ 3910 Cost per Equi. units (B/A) $3.23 $2.30 Prior Cost of Opening WIP $2040 $1550 $391 0 Add: Addition to O. WIP during the month 0 280 * $2.30 $644 Total cost of Opening WIP --- C Cost of stated and completed units --D $423 4 1300*3.23 1300*2.30 Total cost of units transferred out (C + D) Cost of the Inventory on May 31 $718 9 $114 23 300*3.23= 690 120*2.30=276 $966 Closing Units = Opening + introduced Closing = 400 + 1600 1700 = 300 units Unit Material cost = $5160/1600 = $3.23 (according to above table) Unit Conversion cost = $3910/1700 = $2.30 Total Cost of Transferred out = $11423 Cost of inventory May 31 = $966