Select the main purposes for using dialogue in your narrative. establishes credibility
gives factual information
shows the characters' personalities
helps to persuade your audience
helps to advance the storyline
will mark brainliest !

Shows Characters personalities.

Helps Advance the storyline. And I think Gives factual formation since it’s the character talking. Hope this helps

Show his work so he doesn’t get points taken off. this is because even if he can do calculations in his head, he may make a mistake and having it on the paper will not only him find mistakes but show that he was doing the work as well.