Senteces#vol.4 need corrections

I'm going to write sentences with the words I've learned from "Essential English words 5". I'd really apreciate if you correct any mistakes I have. Thanks in advance!
PS: new words I'll highlight by writing them with CAPS LOCK mode.

1. The family planned to buy a new house in a rich, AFFLUENT city area.
2. Last week the governement AUDITED all the banks in our district.
3. The bandit BRIBED the judge to get rid of the life sentence.
4. Many people belive that our governement is CORRUPTED.
5. I DISPOSED of all my old skirts when I was cleaning my room.
These documents are at your DISPOSAL.
You can DISPOSE of the documents as you wish.
6. The bank's HEADQUARTERS are located at the city's center.
7. The trip to Switzerland was her INCENTIVE to find a higher paying job.
Is it better to say "more gainful job"? You could also say to find more gainful employment or a more gainful job.
8. We've received a good income as we've sold a great amount of MERCHANDISE recently.
Or I should say "we've made a good income"?  Either is great! 
9. They expect to double the REVENUE from selling coats in two weeks.
10. I received a fine for VIOLATING the traffic regulations.