Whats -12j > 156 , and n+4 +2n < -20 and also -1/2 k - 14 < 11

The system of equations graphed below has how many solutions? y = 2x + 2

Determine the difference: 3.2 × 1010 – 1.1 × 1010. 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