Texas

These are quarters and nickels. There are no dimes or pennies. One clue says that Jenn has 2 different kinds of coins but does not have dimes or pennies.

The other boxes all have dimes or pennies, so these must be Jenn's coins.

One clue says that Nick has pennies, quarters, and dimes. These must be his coins. These are pennies, quarters, and dimes.

They can't be Jenn's because she does not have dimes or pennies. They can't be Sabrina's because she has just dimes.

These are all dimes.

They can't be Jenn's coins because she does not have dimes or pennies.

One clue says that Sabrina has just dimes. These must be Sabrina's coins.

These are dimes and pennies.

One clue says that Will has dimes and pennies. These must be his coins.