Answer:
i think it would be 21 percent he got wrong so if he got 21 percent wrong it would be 79 percent right
Step-by-step explanation:
beacause if it was 10 question it would be 30 percent wrong since its 15 you divide it by 100 which would be 7 and 7 times 3 is 21
sorry if im wrong
B. 105
Answer: I think it' s A, possibly