Can I please get some help? Thank u!

Which term best describes the association between variables a and b? no association a negative linear association a positive linear association a nonlinear association a scatterplot with an x axis labeled, variable a from zero to ten in increments of two and the y axis labeled, variable b from zero to one hundred forty in increments of twenty with fifteen points in a positive trend.

Factor -8x3-2x2-12x-3 by grouping what is the resulting expression?

Which of the following is the true for f(x) = 5cos