Answer:
The units were started by Sheridan during the month is 21500 units
Step-by-step explanation:
The units started in the month can be derived from the below formula:
units started =units completed-beginning work-in process+ending work-in process
units completed and transferred out=25300 units
beginning work-in process is 8800 units
ending work-in process is 5000 units
units started=25300 units-8800 units+5000 units=21500 units