The US national debt as of March 23, 2013 is about 1.68×10 to the power 13 according to the 2012 US census there are about 3.14×10 to the power of eight US citizens what is each citizens approximate share of the death write your answer in scientific notation

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