Paul owes Paula 35 cents and has a pocket full of 5-cent coins, 10-cent coins, and 25-cent coins that he can use to pay her. What is the difference between the largest and the smallest number of coins he can use to pay her?
a quarter and a dime (difference: .15) a quarter and four nickels (difference: .20) a dime and five nickels (difference: .5) two dimes and three nickels (difference: .5) three dimes and a nickel (difference: .5) seven nickels (difference: 0)
