PLEASE HELP ME WITH THESE 2 I WILL MARK YOU AS THE BEST ANSWER I DON'T UNDERSTAND THESE!!!

Issof claims that the scale factor is 1/2. which statement about his claim is correct

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

Over the course of a month, a person's weight decreases. what type of relationship is this? a. positive relationship