Answer:
2.2
Step-by-step explanation:
First let's find y. We know the sum of angles equals 180, so if we add the angles of ABC, we'd get 180.
30+y+80+y=180
110+2y=180
2y=70
y=35
You could solve x ,but the only response with y=35 is c. But to solve for x, you'd ad 35 35 and xwhich would equal 180.
35+35+x=180
70+x=180
x=110
I believe x= 32. 2(32) - 4 would equal 60. And due to all the angles and sides being the same, this would be correct.
