Answer and Explanation:
a. The preparation manufacturing overhead flexible budget report is shown below:-
 Manufacturing overhead flexible budget report
 Budget Actual Favorable (unfavorable) 
Variable costs 
Indirect materials $11,100 $14,800 $3,700 U 
Indirect labor $11,000 $9,200 $1,800 F 
Utilities $7,700 $9,300 $1,600 U 
Maintenance $5,500 $5,200 $300 F 
Total variable cost $35,300 $38,500 $3,200 U 
Fixed expense 
Supervisory salaries $36,700 $36,700 0 
Depreciation $6,100 $6,100 0 
Property ,taxes $7,400 $8,400 $1,000 U 
Maintenance $4,900 $4,900 0 
total fixed expense $55,100 $56,100 $1,000 U 
total controllable cost $90,400 $94,600 $4200 U
b. The preparation of Manufacturing overhead Responsibility report is shown below:-
Controllable costs Budget Actual Favorable(unfavorable) 
Indirect materials $11,100 $14,800 $3,700 U 
Indirect labor $11,000 $9,200 $1,800 F
Utilities $7,700 $9,300 $1,600 U 
Maintenance $10,400 $10,100 $300 F 
Supervisory salaries $36,700 $36,700 0 
Total $76,900 $80,100 $3200 U