It takes one examiner 40 hours to mark 100 exam papers.
how long should it take 4 examiners to mark 100 exam papers?

Which of the following points is collinear with (-2,1) and (0,3)

Alogical argument that is presented in graphical form using boxes and arrows is called?

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 .