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Hi there!
Since it's the amount of questions she did correctly, and not the amount of questions she misses, you don't subtract 80 from 100.
Hope this helps!
Neither, turn 80% into a decimal, 0.8, then multiply.
Step-by-step explanation:
Answer:
She answered 20 questions correctly.
25 * 0.80= 20
9.4m questions
12.2m answers