How much greater is 500 than 5

Based on what i know about mean, this doesn't add up.

Determine whether the following statements are true and give an explanation or counterexample. bold a. when using the shell method, the axis of the cylindrical shells is parallel to the axis of revolution. bold b. if a region is revolved about the y-axis, then the shell method must be used. bold c. if a region is revolved about the x-axis, then in principle it is possible to use the disk/washer method and integrate with respect to x or the shell method and integrate with respect to y.

Use the data on the dot plot to answer the question.how many people read for more than three hours last week? i'm on a unit test review