Find the missing side of each right triangle (Pythagorean’s Theorem)

What are the relative frequencies to the nearest hundredth of the columns of the two-way table?

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.

Someone me! if you’re smart you can solve this!