The table shows the revenue for four companies in 2013. What is the difference in revenue between the company with the greatest revenue and the one with the least revenue? A. 2.2 × B. 2.2 × C. 6.79 × D. 6.79 ×

Find the area of a parallelogram with base 15 yards and height 21 2/3

Justin has 750 more than eva and eva has 12 less than justin together they have a total of 63 how much money did

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.