Answer:
See explanation
Step-by-step explanation:
Given the inequality 
A) Add -3 to both sides of inequality:

Divide by -7 (remember, dividing the inequality by negative number changes the sign of inequality):

B) Plot open circle at -6 on the number line and shade all values of x which go to the left from -6 (see attached diagram).
< 1 is the angle has the same measurement as < 3 ( alternate interior angles )
Answer:
option B
Step-by-step explanation:
since DA and CB are equal and originate from same line segmnet, they are parallel, so angle D and angle C are equal, angle A and anfle B are equal and angle E is the same for both,
(1) it can be both exterior of vertex or base. 180-130=50°
vertex is 50°: base=(180-50)/2=65°
base is 50°: vertex= 180-2*50=80°
vertex 50 base 65; vertex 80, base 50
(2)base=180-130=50°
vertex=180-2*50=80°
base 50 vertex 80
Answer is the third one. It is the only answer where all points work in the equation.
Answer: third choice