To find 15% of something, you would multiply 0.15 by the number you are trying to find 15% of.
Answer:
10.6666666667 as a fraction equals 106666666667/10000000000
I believe since the definition of perimeter is adding the lengths of all three sides of the angles the, width of the rectangle would be 5, and the length of the rectangle would be 10.
10
+10
-------
20
+5
------
25
+5
------
30
And that is you answer, yay!
So I tested it in a calculator as proof I guess It would be 2/9
