How do I factor this

Which best describes the strength of the correlation, and what is true about the causation between the variables? it is a weak negative correlation, and it is not likely causal. it is a weak negative correlation, and it is likely causal. it is a strong negative correlation, and it is not likely causal. it is a strong negative correlation, and it is likely causal.

What is always true when two whole numbers are subtracted?

Iknow its nothing to do with education, but what type of thing should i wrote here? ? : ) its for mcdonald's btw.