In germany vat is at 19% jeremy buys a calculator in germany for €58.31 the price includes vat find out the amount of vat jeremy paid

9/10 divide by -3/15 as a mixed number

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.

What is the value of x? enter your answer in the box. x =