33. Beth, Bobbie, and Peggy gave a party for Jerri and agree…

33. Beth, Bobbie, and Peggy gave a party for Jerri and agreed to share expenses.       Beth bought $28 worth of pizza, Bobbie bought $20 worth of ice cream, and Peggy      bought $15 worth of soft drinks.  If each of the three girls are to contribute an      equal amount to Jerri’s party, how much money should Peggy give to Beth? (Place a $ in front of your answer.)