Answer:
job T687 total cost 2,151 dollars
Step-by-step explanation:

425,600 / 30,400 = 14 fixed overhead rate
14 fixed + 5 variable = 19
Job T687
applied overhead:
ovehread 20 machine hours x 19 = 381
now we add the three cost components for the total cost:
direct materials 590
direct Labor 1,180
overhead 381
total 2,151