27/40 simplified in fraction form

Which of the following expressions is equal to 2x^2+8

Can someone me with the property questions for 12 13 and 14 plz

Abird on top of a 200 ft bridge tower sees a man standing on the lower part of the bridge (which is 50 ft above the ground). the angle of depression from the bird is 26 ̊. how far is the man from the base of the bridge tower? with explanation and pictures .