Marcus paid $40 to buy a potato cannon, a cylinder that shoots potatoes hundreds of feet. He was willing to pay $45. When Marcus's friend Nick learns that Marcus bought a potato cannon, he asks Marcus if he will sell it for $55, and Marcus agrees.
Nick is thrilled herause he would have paid Marcus up to $80 for the cannon. Marcus is also delighted
Marcus original consumer surplus $_
Marcus’s producer surplus from the resale $___
Nicks’s consumer surplus from the resale $_
Total surplus generated from the resale $_