A man has 3 dimes and 5 nickels in his pocket. To pay for newspaper, he will reach in his pocket as well as retrieve exactly 40 cents. Suppose that the 8 coins are distinguishable.
A.) How many manners are there to pay for the paper using all 3 dimes?
B.) how many manners are there to pay using no dimes?
C.) Overall, how many manners are there for him to pay for the paper?