Answer:

Step-by-step explanation:
Given



Required
Determine the measure of ABC --- <em>Missing part of the question</em>
<em></em>
First, we need to determine the value of x
Since, D is an interior of ABC, then


Collect Like Terms


Solve for x


Substitute 20 for x in 



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The best and most correct answer among the choices provided by the question is <span>{1,2,3}</span><span> .</span><span>
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Hope my answer would be a great help for you.</span>
I believe its B.
for question number 3
There are 3 sticks because:
4 sticks is the total and when you take away 1 stick, it is
4 - 1, which equals 3 sticks
So, the answer is 3 sticks are left.
Question: If u are in high school, why did you ask this question? You already know 4-1=3. Im guessing it was either a joke, or u were helping other people get points. If it is the second one, thx!!