The marginal benefit received for each kilowatt hour (kWh)

of electricity consumed per week for Ang, Tony, and Gianna is provided in the accompanying table. On the same graph, plot each of their individual demand curves.

Assuming these are the only people in the market, graph the market demand curve for gasoline.

kWh consumed per week Ang’s marginal benefit Tony’s marginal benefit Gianna’s marginal benefit 1 $7 $4 $8 2 $5 $3 $6 3 $3 $2 $4 4 $1 $1 $2