Tammy jackson purchased 109 shares of all-american manufacturing company stock at $33.60 a share. one year later, she sold the stock for $41 a share. she paid her broker a $35 commission when she purchased the stock and a $43 commission when she sold it. during the 12 months she owned the stock, she received $198 in dividends. calculate tammy’s total return on this investment. (round all intermediate calculations and final answer to the nearest whole number.)

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?