Because if that point is true than everything on that side of the number line is true. Visa versa.
Is that a with 4 vertices ,,,check your question
Yes it’s a rectangle because the diagonals bisect each other, and they are equal in length.
I would say about 40 kilometers it’s ifs 20 around her neighborhood that 20+20=40 and walking tha rest made the question easier but yea 40