C172 Iron Syndrome

"Hmm?" Hearing this, the policeman raised his head to look at the price list on the wall. That's right, the big bowl was indeed 7 yuan.

Officer!" At this time, the math teacher suddenly stood up as if he had seen his savior, and said excitedly, "Officer, don't be fooled by the price list! That was just a lie to the ignorant masses! I am a teacher at Jianghai City High School