Evaluate each expression for the given value of the variable. 17. 4g-3;g=-2
18. 8p-12;p=4
19. 4x+8;x=-2
20. -5t-15;t=1
Pls help me I need this ASAP and show your work pls

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.