If 6x+3y=−1 and
5x+y=8 are true equations, what would be the value of
−x−2y?

  9

x = 2.778

y = -5.889

-x -2y

= -2.778 - 2(-5.889)

= 9

The answer is 270 cars.you can do this by making a proportional relationship. for instance, 200 is the whole we are using, so on a “number line” 200 would be over 100%. now, since he sells 35% more, add 35% to 100% to get 135% on the other side of the “number line” on the bottom half, leaving the top half empty.cross multiply 200 by 135 then divide by 100 to get your answer. i hope this , if it did, , if you don’t mind, giving me brainiest! 200/100% } 200 • 135 /100 ? /135%