A wall is 20 inches thick. 6 inches is concrete, 9 inches is brick, and 5 inches is limestone. What fraction of the wall is concrete?

Apath 3 m wide runs around the inside of a square park inside 60 m.find the area of the path.pls

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.

The general form of the quetion of a circle is ax^2+by^2+cx+dy+e=0 where a=b=0 if the circle has a radius of three units and the center lies on the y axis which set of values of a, b, c, d, and e might correspond to the circle