Answer the photo below thanks

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.

How do you find principle and simple interest

V=x^4-y^4 pick three expressions that can represent the three dimensions of the prism (each in meters)