Answer:
Angle 6, Angle 8, Angle 2, and Angle 4 are supplementary to Angle 7.
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Answer:

Step-by-step explanation:
Given

Required
Fill in the gap to produce the product of linear expressions

Split to 2

Factorize the first bracket

Represent the _ with X

Factorize the second bracket

To result in a linear expression, then the following condition must be satisfied;

Subtract b from both sides


Multiply both sides by 5


Substitute -15 for X in 




The two linear expressions are
and 
Their product will result in 
<em>Hence, the constant is -15</em>
Answer:
A. 19,70,91
Step-by-step explanation:
Interior angle =180
19+70+91=180