Are the commas where they should be and the sentences that do not need a comma are they correct also. thanks..
1. I can sell a car and you can get a job.
2. Marta’s new house is great, but her utilities are expensive.
3. On May 25, I will be finished with my classes, and ready to start my summer job.
4. I just bought a lottery ticket and a stock option for my birthday.
5. I want to live in Seattle when I retire, but I can’t afford it.
6. Our teams will be competing next weekend, for the championship.
7. My apartment is one block from campus, yet I take my car to campus every day.
8. We bought a new house, and sold our car all in the same year.
9. The arena can hold 5,000 people, but rarely gets over 3,000.
10. The grand prize is a trip to Cancun and we won it.