Determine if this conjecture is true. if not, give a counterexample.

the sum of two negative numbers is less than −1.

false; −1/4 + (−1/4) > −1
true
false; −1 + (−1) < −1
false; 0 + (−1) = −1

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