(a)Find the greatest common factor (GCF) of 21 and 24.
(b)Use the GCF to factor 21 +24.

Fanny mendelssohn manages all the magazines and paperback books at a local grocery store. she prices many paperbacks to sell at $7.99. the cost to the store is $5.29. what is the markup rate on a paperback book, based on its cost?

Identify the number as a rational or irrational.explain. 127

What unit of been sure would be appropriate for the volume of a sphere with a radius of 2 meters