Read the excerpt from Fitzgerald’s The Great Gatsby. Their house was even more elaborate than I expected, a cheerful red-and-white Georgian Colonial mansion, overlooking the bay. The lawn started at the beach and ran toward the front door for a quarter of a mile, jumping over sun-dials and brick walks and burning gardens—finally when it reached the house drifting up the side in bright vines as though from the momentum of its run. The front was broken by a line of French windows, glowing now with reflected gold and wide open to the warm windy afternoon, and Tom Buchanan in riding clothes was standing with his legs apart on the front porch. Based on this description of the Buchanans’ house, what inference can be made about many East Egg residents?

What can be inferred based on this description is that many East Egg residents hide their unattractive qualities beneath beautiful, light, and dreamy appearances.
As is the case of Daisy and Tom - they live in a beautiful manor which seems perfect on the outside, just like Daisy and Tom do. However, if you take a peak inside, you will see their true selves - they are unhappily married, Tom is cheating on her with Myrtle, and Daisy is cheating on him with Gatsby.