Calculate the total volume of the two fish tanks if t = 7 inches.
Think of another real-world situation involving two different sized cube-shaped items.
Write a sentence to describe what the cubes represent and then write an expression to
represent the total volume of the two items as a sum of cubes, using 2a to represent the
side lengths in one cube and 3b to represent the side lengths in the other cube.
Factor the sum of cubes.