The income statement for the Marin Inc. for the month ended July 31 shows Service Revenue $19,560, Salaries and Wages Expense $9,600, Maintenance and Repairs Expense $4,420, and Income Tax Expense $1,340. The statement of retained earnings shows an opening balance for Retained Earnings of $20,650 and Dividends $1,770. Required:
What is the ending balance in Retained Earnings?

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?