Answer:
Bill coaches soccer and teaches maths.
Step-by-step explanation:
When a single subject is linked to two or more verbs in a sentence, then the sentence could be considered to have a compound verb. It may comprise an auxiliary verb joined with the main verb, phrasal verb, etc. As per the question, the single subject 'Bill' is connected to two verbs 'coaches' and 'teaches'. Thus, Bill is the subject and 'coaches' and 'teaches' exemplify the main verb and the sentence after being combined reads as:
"Bill coaches soccer and teaches maths."