Romanita is offered $500 to climb to the top of the academic center, the tallest building on the university campus. before climbing the 80 foot tower, romanita purchased ropes, boots and a safety harness, as well as other equipment, at a cost of close to $150. after two weeks of preparation and encouragement by the offeror, romanita arrives at the tower. however, just before her feet leave the ground on her ascent up the tower, the offeror withdrew the offer, citing safety concerns. does romanita have a claim for the $500? a. no, because unsafe conditions existed. b. yes, because she was ready, willing, and able to perform her obligations under the contract. c. no, but she has a potential claim for the cost of the climbing equipment. d. yes, because this was a bilateral contract.

Over the past decade, brands that were once available only to the wealthy have created more affordable product extensions, giving a far broader range of consumers a taste of the good life. jaguar, for instance, launched its x-type sedan, which starts at $30,000 and is meant for the "almost rich" consumer who aspires to live in luxury. by marketing to people who desire a luxurious lifestyle, jaguar is using:

The third program provides families with $50 in food stamps each week, redeemable for both perishable and nonperishable food. the fourth policy instead provides a family with a box of nonperishable foods each week, worth $50. use two graphs to illustrate that a family may be indifferent between the two programs, but will never prefer the $50 box of nonperishable foods over the $50 in food stamps. state your answer and use a consumer choice model for perishable food and nonperishable food to graphically justify your choice.

6. why the aggregate supply curve slopes upward in the short run in the short run, the quantity of output that firms supply can deviate from the natural level of output if the actual price level in the economy deviates from the expected price level. several theories explain how this might happen. for example, the misperceptions theory asserts that changes in the price level can temporarily mislead firms about what is happening to their output prices. consider a soybean farmer who expects a price level of 100 in the coming year. if the actual price level turns out to be 90, soybean prices will , and if the farmer mistakenly assumes that the price of soybeans declined relative to other prices of goods and services, she will respond by the quantity of soybeans supplied. if other producers in this economy mistake changes in the price level for changes in their relative prices, the unexpected decrease in the price level causes the quantity of output supplied to the natural level of output in the short run.