Answer:
20 athletes have taken performance-enhancing drugs.
Step-by-step explanation:
Assuming that you want to find the number of athletes that have taken drugs, multiply 4% (0.04) by 500.
4%=4/100=1/25
1/25*500=20, 20 athletes have taken performance-enhancing drugs.
I think it's 420 pls correct me if I'm wrong
Answer: The correct answers are B, C, and D.