Adescription of different houses on the market includes the following three variables. which of these variables is quantitative? a. the square footage of the house. b. the monthly gas bill. c. the monthly electric bill. d. all of the above.

Drag the tiles to the boxes to form correct pairs. not all tiles will be used. match each set of vertices with the type of quadrilateral they form

    choose the correct definition for  extremo.  a.  end      b.  extra      c.  extract      d.  eventual 

Set $r$ is a set of rectangles such that (1) only the grid points shown here are used as vertices, (2) all sides are vertical or horizontal and (3) no two rectangles in the set are congruent. if $r$ contains the maximum possible number of rectangles given these conditions, what fraction of the rectangles in set $r$ are squares? express your answer as a common fraction.