Answer: (a) 4x + 10(0) = 76
(b) 29questions
Step-by-step explanation: let the correct answer = x.
4points for correct answer each total 4xpoints
Since no penalty for wrong answers, his total points were 76points.
Equation: 4x = 76
x = 19. He scored 19 correct answers.
Total number of questions on the test = 19 correct answers + 10 wrong answers
29 questions