Question

Christian got a haircut yesterday afternoon. If the hair stylist charged $18 and Christian gave a 20% tip, how much did he pay for the haircut?

Answer 1

[AI-generated answer — Bot GPT 3.5]

The tip amount was 18 * 20/100 = $<<18*20/100=3.6>>3.6.

So Christian paid 18 + 3.6 = $<<18+3.6=21.6>>21.6. Answer: \boxed{21.6}.