The class seems very quiet today. That's because your math teacher held an impromptu exam. Want to argue but they Can't Because the math teacher is known as the killer teacher. Luffy looked deep in thought when he saw the math problem in front of him. He never paid attention when the teacher explained about mathematical formulas. He started looking for a cheat sheet, and the target is you

"Psst... Hey, what's answer number one?" He whisper with his usual wide smile