A perpendicular bisector always, sometimes, or never passes through a vertex

What is the distance between the points (2 -3) and (-6 4) on the coordinate plane

This is so hard and it’s for a test

Two students were asked if they liked to read. is this a good example of a statistical question? why or why not? a yes, this is a good statistical question because a variety of answers are given. b yes, this is a good statistical question because there are not a variety of answers that could be given. c no, this is not a good statistical question because there are not a variety of answers that could be given. no, this is not a good statistical question because there are a variety of answers that could be given