Question:
Software gives more profit over hardware since they have little cost associated with selling more.

they
Answer:
Software
Question:
Insurance companies charge a premium if people had an accident before, so they try to maintain a clean record in order to avoid having to pay more.

they
Answer:
people
Question:
Robert fired Chris because he no longer needed workers.

he
Answer:
Robert
Question:
George talked to Bill because he had experience.

he
Answer:

Bill