If w = t and t = 9, what is the value of w

Ineed solving this problem h/8=-25 solve for h idk how to this can someone show me and also give an answer you

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.

Identify an equation in point slope form for the line perpendicular to y=3x+5 that passes through (4,-1)