Tim mows neighborhood lawns for extra money. suppose that he would be willing to mow one lawn for $14, a second lawn for $16, and a third lawn for $22. 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 $28, and ms. smith would be willing to pay $22.

The answer in what if Tom offers to mow lawns for $22 each, what will be his producer surplus?
Tim's producer surplus would be $14 
Tim would be able to mow all three lawns at a price of $22, because all three of his neighbors would be willing to pay at least that much. Tim would receive a total of $22 x 3, or $66 for mowing the three lawns. 
Tim's "supply curve" would be: he would be willing to mow three lawns for a total of $14 + $16 + $22, or $52. 
He receives $66 for something that he would be willing to do for $52, so his producer surplus would be $14.