Which expression represents each mathematical phrase? Drag the answer into the box to match each phrase.
the product of 7 and a number
the sum of 7 and a number
IIIT
7 less than a number
7 more than twice a number
2 +3 +7
7+ x
23 +7
x-7
72
7- x

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