Tim mows neighborhood lawns for extra money. suppose that he would be willing to mow one lawn for $13
,
a second lawn for $17
,
and a third lawn for $24
.
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 $24
.