well, other than needing a massive amount of quarter rolls, there is no legal problem with it.
3 quarters, and two dimes
2 quarters & 2 nickels.
None. If you "get 65 cents using only dimes nickels and quarters" you are not using any pennies!
Rolls Royce
Two quarters Three nickels Three pennies
There are 5 ways to make 30 cents using quarters, nickels, and dimes.
Three: one using only nickels, one using only dimes and one using only quarters!
many ways 4 quarters and 3 nickels 4 quarters and a dime and a nickel 3 quarters 8 nickels 3 quarters and 4 dimes etc etc etc
You can use: 1 quarter and 75 pennies 2 quarters and 50 pennies 3 quarters and 25 pennies 4 quarters and no pennies 100 pennies and no quarters
See how the ship heaves and rolls.
Yes.
Using the weight of modern (1965-present) copper/nickel quarters of 5.67 grams, one dollar's worth of quarters then weighs 22.68 grams.