What is an example when a percentage is over 100%

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Asphere has a diameter of 10 in. what is the volume of the sphere?

What is the order of these fractions from least to greatest 2/3 7/10 5/8 65/100

The distribution of the amount of money spent by students for textbooks in a semester is approximately normal in shape with a mean of $235 and a standard deviation of $20. according to the standard deviation rule, how much did almost all (99.7%) of the students spend on textbooks in a semester?