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The flattest of all the ellipticals are class .
Good X
A placeholder term for any specific good, product, or item within economic analysis.
Good Y
A hypothetical product or item, often used in economic models and theories to illustrate various economic principles and interactions.
Pepsi
A carbonated soft drink produced and manufactured by PepsiCo, known worldwide and serving as a major competitor to Coca-Cola.
Pizza
A popular dish of Italian origin consisting of a flat round base of dough topped with tomatoes, cheese, and various other ingredients, baked quickly.
Q8: The most tightly wound spiral arms belong
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Q149: The initial rise off the main sequence
Q162: Except for the Local Group, galaxies seem