Segment ab is a segment parallel to the x-axis, where m is the midpoint of segment ab full stop if the length of segment ab equals 20 and the coordinates of m are (−2, 5), what are the coordinates of a?

Right ∆abc has coordinates a(-7, 3), b( -7, 10), and c(-1, 3). the triangle is reflected over the x - axis and then reflected again over the y - axis to create ∆a'b'c'. which are the coordinates of vertex a'?