<em><u>Answer:</u></em>
True
<em><u>Step-by-step explanation:</u></em>
So, again, from the most right column, we can add 5, -6, and -2 to get -3. We now know that every row or column must be equal to -3.
The question is asking if the number square below is -3. We found out from above that is -3 so it's true.
Note: Consider the side of first triangle is TQ instead of TA.
Given:
Triangles TQM and TPN which share vertex T.
To find:
The theorem which shows that 
.
Solution:
In triangle TQM and TPN,
[Given]
[Given]
[Given]
Since two sides and their including angle are congruent in both triangles, therefore both triangles are congruent by SAS postulate.
[SAS]
Therefore, the correct option is C.
<span> convert the mixed numbers to improper fractions, multiply all numerators, multiply all denominators, and convert your answer to a mixed number (if greater than 1) in lowest terms</span>
