What is the answer to x hurry plz who ever shows work will get the braiinliest answer award

I'm being volume of cylinder with 13 in. radius and 30 in height answer choices in pic

Acircle has a diameter will endpoints of (-2,8) and (6, 4). what is the center of the circle

To find the extreme values of a function f(x.y) on a curve x-x(t), y y(t), treat f as a function of the single variable t and use the chain rule to find where df/dt is zero. in any other single-variable case, the extreme values of f are then found among the values at the critical points (points where df/dt is zero or fails to exist), and endpoints of the parameter domain. find the absolute maximum and minimum values of the following function on the given curves. use the parametric equations x=2cos t, y 2 sin t functions: curves: i) the semicircle x4,y20 i) the quarter circle x2+y-4, x20, y20 b, g(x,y)=xy