6x +4 and 2x -8 how do i solve the problem

Quadrilateral wxyz is on a coordinate plane. segment yz is on the line x+y=7 and segment xw is on the line x+y=3. which statement proves how segments yz and xw are related

What is the value of the expression 9+n/3-6 when n = 12? 1. 5. 7. 12.

The two square pyramids are similar. find the total volume of both pyramids if the ratio of their surface areas is 9/16