Apply what you know about triangles to find the missing angle measures in the figure.

Since, by the definition of exterior angle of an triangle,

b + 60° = 125°

⇒ b = 65°

By the angle sum property of triangle,

a + b + 60° = 180°

⇒ a + 65° + 60° = 180°

⇒ a + 125° = 180°

⇒ a = 55°

By the linear angle postulate,

60° + d + 90° = 180°

d + 150° = 180°

d = 30°

Again, by the angle sum property of triangle,

c + d + 90° = 180°

c + 30° + 90° = 180°

c + 120° = 180°

c = 60°

∞ this is your sign

well my understanding of this question is they want you to use the y=14.1x -2.3 and put the coordinates they gave you onto the line segment of   y=14.1x -2.3

step-by-step explanation: