Final answer:
Pennies are commonly arranged into rolls of 50, trays often holding 50 rolls, and boxes containing 50 trays.
Step-by-step explanation:
A roll of pennies typically contains 50 pennies, which amounts to 50 cents. Trays can vary, but a standard bank tray usually holds 50 rolls of pennies. For boxes, it's standard to contain 50 trays, leading to a total of 2,500 rolls of pennies in a box.
Just as larger units of measure such as kilograms, liters, or meters are broken down into smaller units like grams, milliliters, or centimeters, currency is also divided into smaller units. As we know, one dollar equals 100 pennies.
It means it takes 100 of the smaller units (pennies) to equal the larger unit (dollar). Similarly, when considering the mass of pennies, 5 pennies would be best measured in grams, given that each penny weighs approximately 2.5 grams.