What is the answer to this. 4(y - 6)= -4

Choose the more precise measurement. 26.4 cm or 8.39 cm

What is the next step in the given proof? choose the most logical approach. a. statement: m 1 + m 2 + 2(m 3) = 180° reason: angle addition b. statement: m 1 + m 3 = m 2 + m 3 reason: transitive property of equality c. statement: m 1 = m 2 reason: subtraction property of equality d. statement: m 1 + m 2 = m 2 + m 3 reason: substitution property of equality e. statement: 2(m 1) = m 2 + m 3 reason: substitution property of equality

I'm a polygon i have no parallel lines i am formed 3 line segments i have one right angle two of my angles are angles what am i