Please Answer in three to four sentences per each question.

IS THE OFFER IRREVOCABLE?

1. Angie calls Ben and offers to sell Ben her house for $150,000 and promises to keep the offer open for 30 days.

2. Angie speaks to Ben and offers to sell Ben her house for $150,000. Angie says she will keep the offer open for 30 days if Ben gives her $100, which he does.

3. Angie sends Ben a signed letter offering to sell Ben her house for $150,000 and stating that the offer will expire in 30 days if she does not hear from Ben in that time.

4. Angie sends Ben a signed letter offering to sell Ben her house for $150,000 and stating that the offer will not be withdrawn for 30 days.

5. Angie sends Ben a signed letter offering to sell Ben her house for $150,000 and stating that the offer is irrevocable for 6 months.

6. Sandy, a manufacturer of radios, calls Bob on the telephone and offers to sell Bob 100 radios at $5.00 each and tells Bob it is a firm offer for 30 days.

7. Sandy, a manufacturer of radios, sends Bob a signed letter offering to sell Bob 100 radios at $5.00 each and states that it is a firm offer for 30 days.

8. Sandy, a manufacturer of radios, sends Bob a signed letter offering to sell Bob 100 radios at $5.00 each and stating that it is a firm offer for 6 months.

9. Sandy, a manufacturer of radios, sends Bob a signed letter offering to sell Bob 100 radios at $5.00 each and stating that the offer will expire in 30 days.