This assignment delves into the complexities of commercial contract law, examining the formation of contracts through negotiation, offer, and acceptance. It explores scenarios where failed negotiations lead to uncertainty about the existence of an agreement, referencing cases like Masters v Cameron. The assignment also investigates the concept of substantial performance in contract disputes, drawing on cases such as Hoenig v Isaacs and Bolton v Mahadeva. Furthermore, it analyzes the legal rules governing advertisements, covering key players, the influence of Australian Consumer Law (ACL), and the distinction between invitations to treat and offers, as illustrated by cases like Partridge v Crittenden and Carlill v Carbolic Smoke Ball Company. The assignment provides a comprehensive overview of contract law principles, advertising regulations, and their practical application.