Greenville Middle School decided to take their 6th grade students on a field trip to the Science Museum in Raleigh. The Museum have a capacity
of 2500 people and Greenville Middle School has a total of 850 students.
The ratio of girls to boys in the 6th grade is 3:4. If there are 60 girls in the
6th grade, how many students at Greenville middle school are 6th
graders?

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