Not completely sure what graph you are looking for but here is what I got, (-2,-15/4) hope this helps!
(28-92)+8-29 minutes of friends
You would need to use the distance formula.
Distance = Sqrt((x2-x1)^2+(y2-y1)^2)
Plug in your numbers
Distance = Sqrt((12+4)^2+(12-18)^2)
Distance = 17.09
9(3+5) is equivalent because factoring a 9 out of both 27 and 45 leaves us with 9(3+5).
