Hi there!
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I believe your answer is:

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Here’s why:
- The formula for the slope of two given lines given is 'rise over run'.
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- We are given the points (3,5) and (8,7).
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Hope this helps you. I apologize if it’s incorrect.
Answer: b.not enough info
Step-by-step explanation:
Corresponding angles of congruent triangles are congruent, so 
However, we don't have all 3 interior angles of either triangle, so we cannot conclude anything.
So, to do this, all you need to do is add up all the values, and then, with that number, divide by how many values are given.
150+165+165= 480
480/3= 160
Since x=8/3 is a vertical line,the slope is undefined,