Greatest common monomial factor of 15X³Y²-30XY

2x - 20 = 32 20 - 3x = 8 6x - 8 = 16 -13 - 3x = -10

The base of a triangle exceeds the height by 7 centimeters. if the area is 400 square centimeters, find the length of the base and the height of the triangle.

What is the ratio for the surface areas of the cones shown below, given that they are similar and that the ratio of their radil and altitudes is 4: 3? 23