Final Answer:
The statements that support Nick's belief in Gatsby and the story Gatsby is telling are: Statement 1 ("Then it was all true. I saw the skins of tigers flaming in his palace on the Grand Canal...") and Statement 3 ("For a moment I suspected that he was pulling my leg but a glance at him convinced me otherwise.
Step-by-step explanation:
In Statement 1, Nick directly acknowledges the truth of Gatsby's extravagant lifestyle, confirming his belief in Gatsby's narrative. The mention of tiger skins in Gatsby's palace adds a vivid and tangible detail to Gatsby's story, reinforcing its authenticity in Nick's eyes. Statement 3 further solidifies Nick's belief as he dismisses the suspicion that Gatsby might be joking. The glance at Gatsby convinces Nick of the sincerity behind Gatsby's words, showcasing Nick's growing trust in Gatsby's narrative.
Nick's evolving perception of Gatsby is evident in these statements, as he moves from skepticism to acceptance of Gatsby's story. The tiger skins and Gatsby's demeanor contribute to Nick's conviction, highlighting the persuasive elements in Gatsby's narrative. These statements collectively illustrate the building trust between Nick and Gatsby, underscoring the complexity of their relationship and Nick's evolving understanding of Gatsby's character.