Answer:
B. It forms a linear pair with one of the interior angles of the triangle.
hope this helped! <3
<span>the blank boxes are for you to plug in x=20 to prove its right.
so it would be
3(20)-4=2(20+8)
60-4=2(28)
56=56
so its true!</span>
2x^2+3. the 2x cancel out and the rest is combining like terms
Answer: 14,15,29...................