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School has 204 sixth grade students. if the sixth grade is 30% of the total school, how many students are in the middle school?

The radius of a sphere is 3 inches. which represents the volume of the sphere?

Abicycle training wheel has a radius of 3 inches. the bicycle wheel has a radius of 10 inches. approximately how much smaller, in square inches and rounded to the nearest hundredth, is the area of the training wheel than the area of the regular wheel? *