Which is the closest to the area of the shaded region in the given square containing a circle? A: 100 square meters
B: 78.5 square meters
C: 21.5 square meters
D: 50 square meters

Ican figure out 20 shares multiply by $117.98 =2359.6920 shares multiply by $124.32=2486.40then take 40 shares multiply by $128.48=5139.20after that i'm lost any be greatly appreciated.

When using the linear combination metho e linear combination method to solve a system of linear equations, the four options are:

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?