1. which ordered pair is a solution of the equation y=x-4?
(2,6)
(6,2)
(-2,6)
(-6,2)

2. which ordered pair is a solution of the equation y=5x?
(-2,10)
(-5,25)
(-3,15)
(-2,-10)

1.
easy
(x,y)
minus 4 from the first number and if you get the same 2nd number, it is a solution
2-6=-4, nope
6-2=4 yep
-2-6=-8, nope
-6-2=-8, nope
he answer is B or (6,2)

1.
multiply first by 5 and get 2nd number
(x,y)
-2*5=-10, nope, trying to get 10
-5*5=-25, nope trying to get 25
-3*5=-15, ope trying to get 15
-2*5=-10, yep

answer is (-2,10) or D

Best answer that i found on yahoo ok   set :   x= length of 2nd piece in cm  x- 3= length of 1st piece in cm  x-4= length of 3rd piece in cm  then since you know they all came from the 20 cm ribbon you add them together and set them equal to 20x+ x-3 +x-4 = 20  3x - 7= 20  3x= 27  x= 9  the shortest piece is the third piece which is x- 4  x-4  9-4 = 5  the length of the smallest piece is 5 cm.  the other lengths are  9 cm  6 cm