Mma adding, subtracting and multiplying polynomials: (b-10)+(4b-3)

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.

Ryan’s condos fees are $225 each month. tell whether each situation can be modeled by a linear function or an exponential function. explain.

So can you show me how to do the work and what 5 miles equals how many yards