0.78 because 21.06 divided by 9 is 2.34 and divide by three because you have to make three sculptures so you get 0.78 :)
Each student receives about 2.34 pounds of clay, which they divide into three sculptures. Therefore, each sculpture will use approximately 0.78 pounds of clay. This calculation is based on evenly distributing the total clay among the students and then dividing it for the sculptures.
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