Okay so you would subtract the 30 to get 210 then divide the 210 by 14 to get 15 so your inequality

your original inequality is 
A triangle has an inner angle sum of 180°
you have an angle of 30°, x° and one congruent to the x° one
so 30+x+x=180
2x=150
x=75°
Answer:
x=2
Step-by-step explanation:
Dilation of 3
6/3=2
Your answer should be (b)