Segment mp is a diameter of circle o.

which equation can be used to find m?
m + 150 = 180
m + 150 = 360
m – 150 = 180
m – 150 = 360

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'?