Where are many countries of Central Africa located

Sudan and South Sudan to the north and east, the Democratic Republic of the Congo (Kinshasa) and the Republic of the Congo (Brazzaville) to the south, and Cameroon to the west.

Explanation:

b.europe i believe because north america has 3 countries in a way and with all the stuff with illegal immagrants from mexico or whatever so i would say europe.

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.