On August 2, Jack, the owner of a musical instruments store, received the following letter, dated August 1, from Denise, a distributor of slide trombones: "I will sell you 20 Mendini trombones at a price that won't break the bank. These are great student instruments. The total price is $4,000, payment and delivery on September 15. This offer is a firm offer until September 1. (signed) Denise.

On August 20, Jack received a second letter from Denise stating: "Sorry, I withdraw my previous offer to sell you 20 Medini trombones. (signed) Denise."

On August 28, Jack sent the following letter to Denise: "I accept your August 1 offer regarding the Medina slide trombones." Due to a delay in postal service, this letter was not received at Denise's place of business until September 12.

1. Denise refused to deliver the trombones to Jack. Jack sued Denise for breach of contract, Judgment for whom? Explain fully.

1. Instead of the facts stated above assume that the offer stated that it was a firm offer until January 1. On December 15, Jack received a letter from Denise stating: "Sorry, I withdraw my offer dated August 1 to sell you 20 Medini trombones for $4,000." (signed) Denise. On December 23, Jack sent a letter to Denise stating that he accepted her offer of August 1. Denise refused to deliver the trombones to Jack. Judgment for whom. Explain fully.