31) The table below lists the demand curve for sleeves of tennis balls for each member of the Parker family. Use this information to determine the Parker's aggregate family demand for tennis balls. What is the price elasticity of demand for each member of the family at $2.00?What is the price elasticity of family aggregate demand at $2.00? (Fill the shaded area)

Family Member	Demand	Elasticity
Joseph	B = 100 - 2P
Mary	B = 50 - 5P
Joe, Jr.	B = 300
Paul	B = 150 -