Tim mows neighborhood lawns for extra money. Suppose that he would be willing to mow one lawn for $12, a second lawn for $15
, and a third lawn for $23. Also suppose that three neighbors are interested in having their lawns mowed. Mrs. Jones would be willing to pay $30 to have her lawn mowed, Mr. Wilson would be willing to pay $26, and Ms. Smith would be willing to pay $23. Considering Mrs. Jones, Mr. Wilson, and Ms. Smith together, what will be their consumer surplus?