I need help on this please :)

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.

Which of the following graphs represents the function f(x) = 2^x

Find and simplify an expression for the area of five rows of x squares with side lengths of x centimeters.