What is the actual number of kilometers that is represented by 5 centimeters on the map​

Which expression gives you the distance between the points (5,1)and(9,-6)

If private savings 'v' = 0.75s and total savings 's' equals $4.20 billion, solve for public and private savings.

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.