
Spoiler alert:
He thought the villain was Severus Snape.
But it was actually Quirrell.

8 valentines because if she gave away 2 and it was five times more then you do 5x2 which is 10 and 10-2 that she received today so it is 8
Answer:
What does the law of conservation of matter state?
The Law of Conservation of Matter states that matter cannot be created or destroyed. In a physical change, substances can change form, but the total mass remains the same.
Explanation:
Lao Tzu attempted to solve the problems of the period of the warring states through his teachings of the Daodejing (Classic of the Way and of Virtue). In his teachings, he emphasized following the way of nature (the Dao). He also stressed on simplicity, meditation, and living in harmony with nature