There are 6 ways in all:
1. 4 quarters and 2 dimes.
2. 1 half dollar, 2 quarters, 1 dime, and 2 nickels.
3. 1 half dollar, 2 quarters, and 2 dimes.
4. 2 half dollars and 4 nickels.
5. 2 half dollars, 1 dime, and 2 nickels.
6. 2 half dollars and 2 dimes.
Edwin