Not sure how to write this is each one supposed to be 1-2 paragraphs long, or am i supposed to combine all three questions to 1-2 paragraphs?

No, combine all the elements into 1 or 2 paragraphs

Delegates: representatives who cast votes at a political party's national convention. binding: if a primary or caucus is “binding” that means the delegates won in that contest are legally bound to vote for a particular candidate at the parties national convention.a primary is a preliminary election used to determine a party's nominee for a specific office. the winner of the party's caucus, or primary, wins the party nomination for that state. then the delegates meet at their party's national party convention, which is a formal gathering of all party delegates from all states.