A job cost sheet of Crane Company is given below.

Cost of completed job:

Direct materials

Direct labor

Manufacturing overhead

Total cost

Unit cost

$($a$)$

Answer the following questions.

$(1)$ What are the source documents for direct materials, direct labor, and manufacturing overhead costs assigned to this job?

Source Documents

Direct materials

Materials requisition slips

Direct labor

Time tickets

Manufacturing overhead

Predetermined overhead rate

$(2)$ Overhead is applied on the basis of direct labor cost. What is the predetermined manufacturing overhead rate?

Predetermined manufacturing overhead rate

$(3)$ What are the total cost and the unit cost of the completed job? $($Round unit cost to $2$ decimal places, e$.$g$.1\mathrm{.}25.)$

Total cost of the completed job $

Unit cost of the completed job $