Answer:
Total cost =$600
Explanation:
The total cost of the job A45 is the sum of direct material cost, direct labour cost applied overhead .
Direct material cost -(4× 30)=120
Direct labour cost - (20× $15) =300
Overhead - $9 × 20 =180
Total cost = 120 + 300 + 180 = $600
Total cost =$600