Idon’t know the answer or how to get it

A - B:  (6, 7, 8)  

        - (5, 8, 9)   

          (1, -1, -1)

B - A:  (5, 8, 9)  

        - (6, 7, 8)   

          (-1, 1, 1)

Answers: A - B = (1, -1, -1), B - A =  (-1, 1, 1)

ruth is 6 years old

step-by-step explanation:

6 + 24 = 30,   so 6/30 = .2  

if you do 1/5 it also equals .2, so that is the answer.

6mm^3 or .6cm^3

      216

      /   \

  36     6

  /   \     /

6     6   6

factor trees are nice.