3. Were any of your ratios far from pi? Why do you think that happened?

1. whats 2/3 plus 1/9 2. 5/7 plus 1/2 3.7/15 plus 2/15

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.

Solve: 3x+y=6 4x-2y=18 show all work !