Toni has a piggy bank filled with nickels, dimes and quarters. She has a total of $3.00. If she has fewer than 12 coins, What combination of coins could she have in her bank? How many possibilities can you discover?"

Answer 1

fewer than 12 coins = she can only 11 coins.
With 11 coin combination of nickels, dimes & quarters she can't have 3 $