Need the answers for 8,9, and 10 please

8) Inflation is calculated as the rate ot change in tne . A) unemployment rate B) Gross Domestic Product C) Consumer Price Index D) risk-free rate 9) Which of the following is NOT considered to be an operating expense on the income statement A) administrative expenses and overhead B) corporate taxes D) depreciation and amortization 10) Which of the following is a way that the operating activity section of the statement of cash flows adjusts Net Income from the balance sheet? A) It subtracts all expenses and costs related to a firm's operating activities. B) It adds all non-cash entries related to a firm's operating activities. C) It adds the cash that flows from investors to a firm. D) It removes the cash used for investment purposes