Answer:
I think the answer is C. 10
Step-by-step explanation:
Angles 6 and 2 are equivalent. Angles 1 and 5 are equivalent. So, you will plug in the number for x. The answer you get will then be added together.
8(10) + 60= 140
3(10) + 10= 40
140+40= 180
180 is the straight line (I forgot what it is called). So, when you add up the two sums, you will get 180. That is how you will know that you got the right answer.
