Final answer:
In 'The Great Gatsby', Myrtle Wilson visits her husband in the garage, and the noise upstairs is from her guests at their apartment.
Step-by-step explanation:
In the book 'The Great Gatsby' by F. Scott Fitzgerald, Myrtle Wilson visits her husband, Wilson, in the garage. The noise upstairs is from her guests at their apartment. It is important to note that the noise is not from a party, but rather from Myrtle's guests.