Which expression is equivalent to r-9/r-3

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.

What is the perimeter of square abcd? units units 28 units 37 units

The perimeter of a stage is 116 feet. it is 17 feet wide. how long is it?