Can you help with number 5 and 6 and 7 pls

5. New Orleans, Louisiana and St. Louis, Missouri

6. I don’t Know

7.  See if you can find it in the attached picture

Explanation:

answer: this problem has only trivial solutions, with all points on the same line. x=5 or x=7/5.

step-by-step explanation:

there are three triangles, and three unknowns: x, y=length of middle segment, and z=cos(angles marked with red arc).

we need

and law of cosines,

the three equations are

see attached image for solution.