2. 1. Your first car may not be brand new, but you don’t have to settle for a lemon either. Why?: Commas between two independent clauses separated by a conjunction.

3. 2. Affordable, reliable used cars do exist. Why: Two adjectives modifying the same noun.

4. 3. To help you get the most for your money, here is some time-tested advice. Why: Comma after introductory infinitive phrase.

5. 4. Have your used car checked out by an experienced, independent mechanic. Why: Two adjectives modifying the same noun.

6. 5. Well, I suppose we could postpone your test a day or two. Why: Comma after introductory element/mild interjection.

7. 6. Patrick Henry, the famous orator, delivered the speech we are reading today to the Virginia Convention. Why: Comma setting off nonessential appositive phrase.

8. 7. Today we are going to learn some comma rules, and we are going to analyze rhetorical devices. Why?: Commas between two independent clauses separated by a conjunction.

9. 8. At the beginning of the chapter, the author describes the setting in great detail. Why: Comma after two introductory prepositional phrases.