Greg drove at a constant speed in a rainstorm for 300 miles. He took a break, and then stopped. He then drove 114 miles at a speed that was 7 miles per hour faster than his previous speed. If he drove for 8 hours, find the cars speed for each part of the trip.

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