21 COINS 9 are NICKLES all the other are pennies 21 - 9 =12 so 12 pennies 1 nickle is 5 cents so 5*9 = 45 cents so 45 + 12 = 57 so the answer is 57 cents
do 21-9=12. So there are 12 pennies. then since you are finding the value of the coins you do 9*5=45 since there are 9 nickels and each nickel is 5 cents. Then you add 45+12=57. So the value is 57 cents.
