Plz me get the answer to these asap

Two lines parallel to the same plane are parallel to eachother

What set does not contain -3 the set of all real numbers the set of all integers the set of all whole numbers the set of all rational numbers

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 .