Y=2x+8 3x+2y=-5 find the solution to this system. answer and explain this, i can't seem to get these questions and im really struggling! !

Ben bowled 124 and 188 in his first two games. what must he bowl in his third game to have an average of at least 160?

Which ordered pair (c,d) is a solution to the given system of linear equations- c+2d=13 -9c-4d=-15

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?