Could somebody help me 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.

Simplify the expression 10/11(22z) + (a+5) -1

Which number completes the inequality? 2/3 < _ < 7/9