5x^2 - 6x - 28 = 0
please help me do this

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?

In a column proof the right column states your reasons

Mr.walker is looking at the fundraiser totals for the last five years , how does the mean of the totals compare to the median?