Groups of change with totals from 1 to 100 cents using the least amount of coins.

Illustration of 27 congruent cubes stacked to resemble a larger cube that measures three by three by…

Illustration of 27 congruent cubes stacked at various heights in the shape of a W. A 3-dimensional representation…

An isosceles triangle with angles 126, 27, 27

An isosceles triangle with angles 27, 76.5, 76.5