Answer:
23 correct answers, and 3 unanswered questions.
Explanation:
Hi, to answer this question we have to analyze the information given:
25 questions
+5 for every correct answer
-5 for every incorrect answer
0 for not writing any answer
So, if she answers correctly 22 answers, and doesn't write any answers for 3 questions:
22 x 5 = 110 (score)
22 (correct) + 3 (unanswered) =25 (number of questions)
Feel free to ask for more if needed or if you did not understand something.