What are the possible values for x and y if x = 45, y = 45, and when x and y are combined they equal O? Explain your reasoning. The possible values for x and y are The values of x and y must be because

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.

The anwser cause i do not understand just plez

Factor the polynomial expression x6 – x3 – 20