Find the circumference of R.

The vertices of a triangle are a(7,5), b(4,2), c(9,2). what is m

Do you mind if you guys me with this question i’m on number 8

Aline has a slope of . which ordered pairs could be points on a parallel line? check all that apply. (-8, 8) and (2, 2) (-5, -1) and (0, 2) (-3, 6) and (6, -9) (-2, 1) and (3,-2) (0, 2) and (5,5)