Someone please answer 6 for me

What is the slope simplify your answer and write it as a proper fraction, improper fraction, or integer

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.

45 was divided by a power of ten to get 4.5. what power of ten was it divided by? people 4.5