Answer:
so the distance between the police and the library is 2x-3 where x is the distance between the police and fire and distance between the library and fire is 5 so
2x-3=5
2x=8
x=4
so C
Hope This Helps!!!
The correct answer for this question is 68.
3x=6 is the answer after solving the first step in the equation
The data is a little bit complex,but you can use the knowledge of vector in the subject of algebra,or you can ultimate the basic Euclidean knowledge,like cosine theorem.In detail,you can list two equation with two variable,and get the answer.but i don't finish calculating it.