One example that comes to my mind is physics. By Curie's principle, the symmetry of causes leads to a symmetry in the effects.
There are many other possible answers though (art for instance).
Answer:
a form that is derived from a verb but that functions as a noun
Answer:
You don't use "few days ago" simply because it's improper english.
Explanation:
A) 416=80+4x
B) 416=80+4x
336=4x
84=x
Mr. Harrison can buy a maximum of 84 books for his new bookshelf.
