Jamaal ran 6 miles in 30 minutes. which expression shows how to correctly determine his speed in miles per minute? 6 miles ÷ 30 minutes 30 minutes ÷ 6 miles 6 miles ÷ 1 minute 30 minutes ÷ 1 mile

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