How to long divide complex polynomials.

What is the total surface area of this square pyramid?

If private savings 'v' = 0.75s and total savings 's' equals $4.20 billion, solve for public and private savings.

Isabel graphed the following system of equations. 2x – y = 6 y = -3x + 4 she came up with the solution (2,-2). what were the 3 steps she did to get that solution? (make sure they are in the correct order)