They shoud adopt the one-child policy but it is bad to
Answer:
A.
Explanation:
Sign changing means that each value went from positive to negative.
A is a 180 degree rotation around the origin, the answer would be A.
B doesn't change the sign for neither x nor y.
C changes the sign for y, but not x.
D changes the sign for x, but not y.
The correct answers consist of C, D, and E
Answer:
This is false.
Explanation:
A polyglot is a person who can speak many languages. It isn´t a map of language distribution.
The answer to the question ABC
