Bill was injured on the job and hospitalized for several months. Without telling Bill, and to prevent him from being cited by the city during this period, Bill's friend Ted mowed Bill's lawn weekly and fed and watered his pets. When Bill returned home from the hospital, he was shocked at what Ted had done and said, "I'll pay you $500 for all your work." Is this an enforceable promise? Why or why not?

David paid $975,000 for two beachfront lots in coastal south carolina, with the intention of building residential homes on each. two years later, the south carolina legislature passed the beachfront management act, barring any further development of the coast, including david's lots. when david files a complaint to seek compensation for his property, south carolina refuses, pointing to a passage in david's own complaint that states "the beachfront management act [was] properly and validly designed to south carolina's " is south carolina required to compensate david under the takings clause?