We have the following information:
- She started with 0 points.
- She earned 50 points and the 10 points.
- She lost 80 points.
The word "earned" indicates addition and the word "lost" indicates that we must subtract.
So, based on the explained above, you can write the following operation:
[tex]0+50+10-80[/tex]
Adding the numbers, you get the following result:
[tex]=60-80=-20[/tex]
So, you must find the number line that has a dot on the number -20.
If you see the picture, you can conclude that the number line that shows her ending score in the game is the OPTION B.
