Reduce to lowest terms. 4x^3y^4/-8xy^2
A.) -4x^3y^2
B.) -2x^2y^2
C.) -1/2x^2y^2

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?