Brenda, Craig, Jon, Matt, and Tommy each had a big brownie to eat. The yellow area is the fraction of the brownie that each person ate.

• Jon ate the same amount as Matt.

• Tommy ate more than Matt did.

• Brenda ate less than Jon ate and more than Craig ate.

• Matt's brownie was cut into more pieces than Jon's.

How much of his or her brownie did each person eat?