Helen, aged 17, wanted to buy a Harley-Davidson "Sportster" motorcycle. She did not have the funds to pay cash but persuaded the dealer to sell the cycle to her on credit. The dealer did so partly because Helen said she was 22 and showed the dealer an identification card that falsely stated her age as 22. Helen drove the motorcycle away. A few days later, she damaged it and returned it to the dealer, and stated that she disaffirmed the contract because she was a minor. The dealer said she could not because she misinterpreted her age and the motorcycle was damaged. Can she avoid the contract?

Feedback systems do not always involve negative feedback. economic inflation, which is evidenced by continually rising prices, is a positive feedback system. a positive feedback control system, as shown on the right, adds the feedback signal to the input signal, and the resulting signal is used as the input to the process. a simple model of the price-wage inflationary spiral is shown on the right. add additional feedback loops, such as legislative control or control of the tax rate, to stabilize the system. it is assumed that an increase in workers’ salaries, after some time delay, results an increase in prices. under what conditions could prices be stabilized by falsifying or delaying the availability of cost-ofliving data? how would a national wage and price economic guideline program affect the feedback system?