HELP A density graph for all the possible speeds between 0 mph and 160 mph is in the shape of a triangle. What is the height of the triangle? A. 0.00625 B. 0.003125 C. 0.025 D. 0.0125

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