I would go with B i had this question on my test and i got it correct
Answer:
All angles in a triangle sum up to 180 degrees.
So, 63+71+x=180 degrees.
You add like terms: 134, and then add x.
134+x=180 degrees.
Minus x from both sides.
180-134=x.
What do you think x is?
-6k+7k equals 1k.................................
<span>(2x + 1) • (x - 3) • (x + 4)</span>
