8. A teacher wanted to prevent students from guessing answers on a
multiple-choice test. The teacher graded 5 points for a correct answer, 0
points for no answer, and -2 points for a wrong answer. Giselle answered
-17 questions correctly, left 3 blank, and had 5 wrong answers. She also
got 8 out of 10 possible points for extra credit. What was her final score?