(4x^3y)(-2x^4y^-1)^2(6x^8y^5)^0 PL HELP ME

Of four points are collinear, they are also coplanar

The rumpart family is building a new room onto their house. the width of the new room will be 16 feet. the length of the room will be 4% greater than the width. write an expression to find the length of the new room. what will be the area of this new room?

6x + 3y = -6 2x + y = -2 a. x = 0, y = -2 b. infinite solutions c. x = -1, y = 0 d. no solution