The ratio of hardbacks to paperbacks in the school library was 5 to 2. If there were 600 hardbacks, how many paperbacks were there?

An advertising firm has an old computer that can prepare a whole mailing in 6 hours. with the of newer model the job is complete in 2 hours. how long would it take the newer model to do the job alone?

The parabola x = y² - 9 opens: a.)up b.)down c.) right d.)left

In the diagram, points d and e are marked by drawing arcs of equal size centered at b such that the arcs intersect ba and bc. then, intersecting arcs of equal size are drawn centered at points d and e. point p is located at the intersection of these arcs. based on this construction, m , and m