The descriptions below outline different options for saving money. use x to represent the number of months and y to represent the total amount saved. for each equation and graph, drag the situation that can be modeled by that relationship into the space in that row.

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.

Anyone know? will mark brainliest if correct

Evaluate the expression for the given value of the variable. ∣-4b-8∣+∣-1-b^2 ∣+2b^3 ; b=-2