Please answer the last three question, and plz tell me why.

Project WilliamsChandler Nguyen 100 120 Designer-hours Direct materials cost Direct labour cost 80 $6,400 $2,520 $5,040 $3,200 $1,400 $2,100 Actual overhead costs were $13,200 for May. Overhead costs are applied to projects on the basis of designer-hours since most of the overhead is related to the costs of the garden design studio. The predetermined overhead rate is $49 per designer-hour. The Williams and Chandler projects were completed in May, the Nguyen project was not completed by the end of the month. No other jobs were in process during May. Required: 1. Compute the amount of overhead cost that would have been charged to each project during May Williams Chandler Nguyen Overhead applied 4,900$ 3,920 5,880 2. Prepare a journal entry showing the completion of the Williams and Chandler projects and the transfer of costs to the Completed Projects (i.e., Finished Goods) account. (If no entry is required for a transaction/event, select "No journal entry required" in the first account field.) View transaction list 3. What is the balance in the Work in Process account at the end of the month? Balance in the work in process 4-a. What is the balance in the Overhead account at the end of the month? Balance in overhead account credit