Answer :

1+1+1+1+1+5+5+5+5 is one
5+5+5+1+1+1+1+1+1+1+1+1+1 is another
5+5+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1 is three
5+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1 is four.

There are 4 combinations.

Answer:

There are four possible combinations.

Step-by-step explanation:

We know that one penny equals 1 cents of dollar, and one nickel values 5 cents of dollar. So, the possible combinations are

Pennies     Nickles.

     5               4

    10               3

    15               2

    20              1