Which answer describes this pattern? 1,7, 14, 20, 40, 46, ... A) Add 6, then add 7; add 6, then add 20; add 6, then add 46; and so on.
B) Repeatedly add 6, then add 7.
Repeatedly add 6, then multiply by 2.
C) Repeatedly add 6, then multiply by 2.

D) Repeatedly multiply by 7, then multiply by 2.

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