Yasmine is serving ice cream at her birthday party and she got 19 1/2 pints of ice cream and she going to serve her guest 3/4 of the ice cream so how many pints is the guest going to get

What does the relationship between the mean and median reveal about the shape of the data

How to do this , and can some one explain

Astick 2 m long is placed vertically at point b. the top of the stick is in line with the top of a tree as seen from point a, which is 3 m from the stick and 30 m from the tree. how tall is the tree?