12/15 games have been won then they won 3 which makes it then 15/18 because the denominator is how many games they've played while the numerator is how many games they one.

Cross multiply both...

divide each side by 18 to make the x by itself
Which gives you x=83.333%
The correct answer is 50%.
Approximately the middle 50% of data is contained inside the box of a box plot.
Answer:
I believe your have to find the linear lines in order to find the answer.
Step-by-step explanation:
Well... Basically, you should prove this by SSS property(side-side-side). It's fair to say that the length of a side is equal to itself so The line that cuts through the rectangle is a side for both rectangles. Thus because of the given, all the sides of the triangles are equal to one another. This is a very important trick for geometry(I remember using it a lot).
Hope this helps!