bivariate data. One entry vertical, one entry horizontal.
Well, it depends on the given measurements of that circle. Typically, to find the radius of a circle you'd have to divide the diameter in half.
Ok, great to have you! I will finally answer your question.
This seems to be a system of equations. I solve most of mine on Desmos.
Let us write two equations to model this:


We get the graph. Note the intersection at (26,33).
That means that route X is 26 miles long,and route Y is 33 miles long!.
Hope this helps.
X = the number
14 + 2x = 6x - 7
21 + 2x = 6x
21 = 4x
5.25 = x
The number is 5.25.