AX= 2x; XB= y+12; DX= 3y-8; CC= x+9

find x and y

What is the volume of a rectangular prism if the length is 10.4 mm the width is 5 mm in the height is 8 mm

The radius of the base of a cylinder is 10 centimeters, and its height is 20 centimeters. a cone is used to fill the cylinder with water. the radius of the cone's base is 5 centimeters, and its height is 10 centimeters.

If the ratio of sum of the first m and n terms of an ap is m2 : n2 , show that the ratio of its mth and nth terms is (2m − 1) : (2n − 1).