7^2019 में इकाई स्थान पर कौन सा अंक होगा

What is the order of magnitude for the number of liters in a large bottle of soda served at a party

Mackenzie needs to determine whether the rectangles are proportional. which process could she use? check all that apply.

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.