Which equation shows how many parts are shaded

What is the approximate total length of iron edging needed to create the square frame and the two diagonals?

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.

When 142 is added to a number the result is 64 more then 3 times the number. option 35 37 39 41