What 9 formulas are used for the Coin Denomination Conversions Calculator?
1 dollar = 100 pennies
1 dollar = 20 nickels
1 dollar = 10 dimes
1 dollar = 4 quarters
1 quarter = 5 nickels
1 quarter = 25 pennies
1 dime = 10 pennies
1 dime = 2 nickels
1 nickel = 5 pennies