Law related please answer questions fully. Thank you.

5. On January 1, Edward, a used car salesperson, sent a signed letter to Charles offering to sell to Charles a 2016 Toyota Corolla for $6,500. In the letter, which accurately described the car, the price and the payment terms, Edward wrote: "This is an irrevocable offer for 4 months. (signed) Edward." On April 15, Edward changed his mind and decided that he did not want to sell the car. On the same day, Edward sent a signed letter to Charles in which he revoked the January 1 offer. Charles received the revocation on April 17. On April 25, Charles sent a letter to Edward saying, "I accept your offer of January 1." Edward received this letter on April 27. Edward refused to deliver the car to Charles. Charles sued Edward for breach of contract. (a) Judgment for whom? Explain fully. (b) Assume Edward is not a car salesman but a high school teacher at PS 12 in Brooklyn, N.Y. Would this change your answer to (a) abole? Explain fully. (15 points) 6. Jim is the senior salesperson at Ace Electronics in Queens, New York. Ace's sales were over $15 million during 2018. At Ace's holiday party on December 20, 2018, Brandon, the pres- ident of Ace Electronics, in a speech, publicly praised Jim and stated that Jim would receive an additional $75,000 bonus for Jim's excellent performance in 2018. During the second week of January 2019, Ace experienced an unprecedented number of returns of defective merchandise which eliminated much of Ace's profits for 2018. Brandon blamed Jim for this turn of events and refused to pay the $75,000 bonus. Jim sues Ace for the $75,000 bonus. (a) Judgment for whom? Explain fully. (b) Would your answer to (a) be different if Brandon's promise to Jim was in a signed email that he sent to Jim after the holidiax, party? Explain fully