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.
Answer:
the red one
Step-by-step explanation:
the answer is 250 cubic inches
For the first one it's 90.5, I know cause I just took the test and it's right. The second one I'm not sure..