Which pair of expressions below are equivalent? A: 8x-24
B:x+x+x+x
C:3x=+5x
D:X to the power of 4
E:4(2x-6
F:7(2x)
G: 15x
H:9x

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