Answer:
The options to complete the proof are placed in the boxes of the attached drawing created with Microsoft Word
Step-by-step explanation:
Please see attached drawing of the proof created with Microsoft Word
The two column proof can be presented as follows;
Statement
Reason
Given
m∠3 + m∠4 = 180°
Linear pair postulate
∠1 ≅ ∠3
Corresponding Angle Theorem
m∠1 + m∠4 = 180°
Transitive Property
m∠1 and m∠4 are supplementary
Definition of supplementary angles
Answer:
B. 
Step-by-step explanation:
The inequality "B" is correct because when you simplify it, you can see that it holds true:

49 > 29
49 is indeed greater than 29, making this inequality true.
Answer:
x is greater or equal to 7
Step-by-step explanation:
Answer:
68 degrees
Step-by-step explanation:
To get the interior angle, we use an important triangle principle
The principle is that the sum of the opposite interior angles equal the exterior angle
Let the second interior angle be x
x + 51 = 119
x = 119-51
x = 68