For its three investment centers, Gerrard Company accumulates the following data: I II III Sales $1,930,000 $3,924,000 $3,971,000 Controllable margin 1,351,000 1,962,000 3,573,900 Average operating assets 5,068,000 8,072,000 12,049,000 The centers expect the following changes in the next year: (I) increase sales 10%; (II) decrease costs $383,000; (III) decrease average operating assets $474,000. Compute the expected return on investment (ROI) for each center. Assume center I has a controllable margin percentage of 70%.

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?