Plz solve these true or false questions

7. Charles buys a violin from Betty for $250. Although the violin is very old, neither party believes that it is extremely valuable. An antiques dealer later informs the parties, however, that the violin is rare and worth thousands of dollars. This is a situation where a court would probably allow Betty to avoid the contract. 8. Punitive damages are awarded to compensate a party for losses suffered due to another party's breach of contract. 9. Al is driving down the street while texting, and he negligently hits Sue's parked car. Sue is furious with Al, and demands that he pay her $1,000-or else she will sue him for $2,000. Al agrees to Sue's demand, promising to pay her $1,000 when he gets paid next month. Later Al regrets this agreement and refuses to pay Sue. Al will be able to avoid this contract because of duress. 10. If one party to a contract gives substantial performance of his obligations, the other party has a duty to perform