In δabc, if ab = 10 and bc = 6, ac can not be equal to
  a.  8
  b.  4
  c.  6
  d.  10

Which statement justifies why angle ebc measures 90?

Which type of graph would allow us to quickly see how many students between 100 and 200 students were treated?

What is the greatest number of parts of a circle that can be formed by cutting the circle with 7 straight cuts? (note: the parts do not have to be equal in size)