Convert 0.3 to a percent

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.

Which shows the correct substitution of the values a,b and c from the equation 1=-2x+3x^2+1

Y=(x+3)(x-4)(x+1)^2 sulutions? multiplicity?