50
500 pennies, 100 nickles, 50 dimes, 20 quaters
Two dimes and five pennies.
You cannot make exactly 0.55 with 12 coins, as there are no coin combinations that add up to that specific value. The closest value you can reach with 12 coins is 0.60, by using five dimes, three nickels, and four pennies.
Three dimes, four nickels, five pennies
Three dimes, three nickels, five pennies
Nickels are worth five cents and dimes are worth ten.
Two dimes + two nickels+ five pennies 20+10+5
Four.
Three dimes, four nickels, five pennies
Seven combinations that I can come up with: two dimes a nickel and three pennies all pennies two dimes and eight pennies a quarter and three pennies five nickels and three pennies three nickels one dime and three pennies two nickels one dime and eight pennies
There are 12 different combinations using pennies, nickels and dimes. 25 pennies 20 pennies and 1 nickel 15 pennies and 2 nickels 15 pennies and 1 dime 10 pennies and 3 nickels 10 pennies 1 dime and 1 nickel 5 pennies and 4 nickels 5 pennies 1 dime and 2 nickels 5 pennies and 2 dimes 5 nickels 1 dime and 3 nickels 2 dimes and 1 nickel
Three dimes, four nickels, five pennies