Answer:
Step-by-step explanation:
Let |x-a|=b
then x-a=±b
so x-a=b
or x=a+b
so a+b=18 ...(1)
and x-a=-b
or x=a-b
or a-b=8 ...(2)
adding (1) and (2)
2a=26
a=26/2=13
subtract (2) from (1)
2b=10
b=10/2=5
|x-13|=5
5 x 5 x 5 = 125
since the perimeter is 20, and there are four sides, each side would be 5 since it is a square. then you do l x w x h and get 125
is there supposed to be a picture? if so it isn’t there