PLZ HELP ME PLZ Match each equation to its solution
Column A 12x = -5 B -2x = -9 C -12x= 14 D -2x = 7 E X + -2 = -6.5 F -2 + x = 12
Column B 1. X = -4.5 2. X = - 12 3. X = -10 4. X = 4.5 5. X = 212 6. X = -3.5

For every corresponding pair of cross sections, the area of the cross section of a sphere with radius r is equal to the area of the cross section of a cylinder with radius and height 2r minus the volume of two cones, each with a radius and height of r. a cross section of the sphere is and a cross section of the cylinder minus the cones, taken parallel to the base of cylinder, is the volume of the cylinder with radius r and height 2r is and the volume of each cone with radius r and height r is 1/3 pie r^3. so the volume of the cylinder minus the two cones is therefore, the volume of the cylinder is 4/3pie r^3 by cavalieri's principle. (fill in options are: r/2- r- 2r- an annulus- a circle -1/3pier^3- 2/3pier^3- 4/3pier^3- 5/3pier^3- 2pier^3- 4pier^3)