Which planet is about 1/10 of the distance uranus is from the sun?
mercury: 57,910 jupiter: 778, 400
venus: 108,200 saturn: 1,427, 000
earth: 149,600 uranus: 2,871,000
mars: 227900 neptune: 4,498, 000

You can find the constant of proportionality by finding the ratio of

Which number completes the inequality? 2/3 < _ < 7/9

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.