HI, how do I answer this question?

Sketchie & Co., a US distributor, dispatched a letter to purchase irrigation systems to Trimo Space, a manufacturer headquartered in Miami, Florida. The letter read "I offer to purchase your irrigation systems (1 unit) for $70,000- offer open until October 18," signed Sketchie & Co. The offer arrives by mail on October 2. On October 14, Trimo sends its acceptance by mail. In the meantime, however, Sketchie changes its mind and decides to revoke its offer, which it does by mail on October 8. The revocation reached Trimo on October 13; the acceptance reached Sketchie on October 17. Trimo claims that a valid contract existed between the two companies and sues under the UCC for enforcement of this contract. Sketchie argues that the parties did not have a valid agreement. Can Trimo Space succeed in its claim? Why yes or why not?