The difference of values of the third quartile and the media of the data set represented by the box plot is __ ?

Any is very appreciated! (picture is provided below)not sure how to do this at all won't lie

Aswimming pool had 2.5 million liters of water in it. some water evaporated, and then the pool only had 22 million liters of water in it. what percent of the water evaporated?

0if x and y vary inversely and y=6 as x=7, what is the constant of variation?