Depending on the sentence content, there are four ways to puncuate a compound sentence with two independent clauses -
Use a semicolon
Use a semicolon and a transition word (however, therefore)
Use a colon
Use a comma and coordinating conjunction (and, but, for)
Answer: Athena was the one who returned Achilles his spear.
Explanation:
She thinks he can’t be trusted to use good sense
Answer:
I dunno
Explanation:
I really dunno because I dunno and this needs to be 20 characters long so honestly I dunno
Answer:
WHat?
Explanation:
of course not! why would it be?