I need help please. Can the responses be explain throughly so I am able to really understand the answers. I really appreciate it.

On September 2, Neighbor Car Sales, a used-car dealer, wrote a letter to Randolph, which stated, \"We have a 2003 Malibu Chevy in mint condition that we will sell you for $22,500 at any time before October 2. [Signed] Neighbor Car Sales.\" By September 15, having heard nothing from Randolph, Neighbor Car Sales sold the Malibu to another party. On September 25, Randolph told Neighbor Car Sales that he accepted the offer and tendered $22,500. When Neighbor Car Sales told Randolph it had sold the car to another party, Randolph claimed Neighbor Car Sales had breached their contract. 1. State whether Neighbor Car Sales is in breach of their \"contract\" by stating and defining the law that is found in Chapter 20 of the textbook. Apply the law to the facts and state your conclusion