-2 ( 1/4x + 2) > or equal to 5

Hi, can anyone show me how to do this problem? 100 points for this. in advance

Will give brainliestbased on the topographic map of mt. st. helens, what is the contour interval if the volcano height is 2,950 m?

Find the volume of the wedge cut from the first octant by the cylinder z=12-3y^2 and the plane x+y=2.