Where can the perpendicular bisectors of a right triangle intersect

Which property is illustrated by the following statement? if hxa rgi, then rgi hxa.

An object is translated by (x + 4, y - 2). if one point in the image has the coordinates (5, -3), what would be the coordinates of its pre-image? (9, -5) (1, -5) (9, -1) (1, -1)

If abcde is reflected over the x-axis and then translated 3 units left, what are the new coordinates d? are he re