Answer
I am positive it us 4x = 14 I truly apologize if it's not.
Step-by-step explanation
You have 4 colored balls, one is red, another blue, green, and yellow. What is the probability of drawing out a red ball?
Assuming you have some angle measures, you could use the
Law of Sines to solve for the missing side lengths, which states that,

,
where a, b, and c correspond to the given sides you have, and A, B, and C represent the angles you have.
In this scenario, you would have to have the values for c (which we do), and have the angle measure of C. In addition, we would also need an angle measure that is either A or B.
Hope this helps a bit!
:)