If a=2/3b , b=2/3c, and c=2/3d what part of d is b/	Select.
A) 8/27  B) 4/9  C) 2/3  D) 7/8  E) 4/3
now put c=2/3d in b=2/3c   so b=2/3*2/3d   b=4/9d   ANSWER:4/9
<result>B</result>
If a=2/3b , b=2/3c, and c=2/3d what part of d is b/