1 1 point
Horatio was sitting by a campfire watching the logs burn. Which of the following is true?
0 The fire produced no physical change in logs.
The fire produces physical changes in the logs.
The ashes left behind are a new substance.
The ashes left behind by the logs are going to be made into new logs.

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