Can some ask a easy math question so i can get one more brainliest thanks

Place the following steps in order to complete the square and solve the quadratic equation,

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?

12 out of 30 people chose their favourite colour as blue caculate the angle you would use for blue on a pie chart