How many combinations are there to make $2.50 using one dollar bills, quarters, and dimes?

Parentheses: () are the total money is made.

1 dollar bill = (1.00), 4 quarters = (1.00) and 5 dimes = (.50)

8 quarters = (2.00), two quarters = (.50)

1 dollar bil = l (1.00), 4 quarters = (1.00) and two quarters = (.50)