What is the arc measure of ACB on circle P in degrees?

Complete the statements about the system of linear equation respresented by the tables the equation respented the left table is

A, b, c, and d have the coordinates (-8, 1), (-2, 4), (-3, -1), and (-6, 5), respectively. which sentence about the points is true? a. a, b, c, and d lie on the same line. b. and are perpendicular lines. c. and are parallel lines. d. and are intersecting lines but are not perpendicular. e. and are parallel lines.

For each proportion find the unknown number x 1/5/8=×/15