HELP PLEASE 10 POINTS

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.

Acar travels at an average speed of 52 miles per hour. how long does it take to travel 299 miles

What is the value of x in the following equation? -3x-2=2x+8