Mrs. hernandez keeps her classroom supply of
centimeter cubes in a box that is 20 cm by 6 cm
by 3 cm. how many centimeter cubes will fill
the box?

Determine whether the set of whole numbers is closed under addition. explain why the set is or is not closed. give an example.

Asocial networking site currently has 400,000 active members, and that figure is predicted to increase by 32% each year. the following expression represents the number of active members on the site after t years.

Sasha drank 8 bottles of water everyday for a week. how many bottles of water did she drink in total?