Please help me this is a prodigy question

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.

It says factor each expression completely 8y+48

Acircle has a circumference of 7.850 units. what is its radius?