Respuesta :
each question is worth 4 points because if he missed 5 Â questions and 5*4 is 20 and 20 minus 100 is 80
(x-5)/x * 100 = 80
(x-5) * 100 = 80x
100x - 500 = 80x
20x = 500
x =25 questions
(100 / 25) = 4 points per question
(x-5) * 100 = 80x
100x - 500 = 80x
20x = 500
x =25 questions
(100 / 25) = 4 points per question