19. Track The sketch at the right shows the distance three runners travel during a race. Describe what occurs at times A, B, C, and D. In what order do the runners finish?

Question

19. Track The sketch at the right shows the distance  three runners travel during a race. Describe what  occurs at times A, B, C, and D. In what order do the  runners finish?

Ms. Sue · Answer

Hmm -- The sketch at the right seems to be invisible. I'm good -- but I still haven't developed the skill to see what's invisible.