Not completely sure how to answer your question but all 20 questions where worth 5 points each which she would have gotten a 100 if she got all right but she got 15 which her score would be 75. I think in a ratio of correct to incorrect would be 75:100 , I'm not sure completely.
Check on this website
file:///C:/Users/nadim/Downloads/Lesson%207%20Problem%20Set.pdf
Answer:
The picture is the answer.
Hope this helps!
Answer:
52
Step-by-step explanation:
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K (this has to be 20 characters long so I am typing this)
