Can somebody Answer 2 and 3 for me please

2. Sara invests $1000 into a fund that earns compound interest. This means that as interest is earned, the interest is added to the original principal, so that the next interest amount is calculated on a higher value. The following table shows the value of Sara's investment after each year. a. Complete first difference and ratio columns to verify that this is an exponential relationship b. Using the ratio value obtained, what is the interest rate of the investment? c. Use technology to determine the regression equation. d. Use the regression equation to find the value of Sara's investment after a total of 25 years. Year Amount Common Difference Ratio 0 1 000.00 1 080.00 2 1,166.40 1 259.71 1,360.49 1 3 4 5 Oh 1 469 33 6 7 1586.87 1713.82 1 850.93 1999.00 8 9 10 2,158.92 3. The following table shows the concentration of medication in a patient's blood after an injection a. Use technology to determine the most appropriate regression equation. b. Use the regression equation to find the concentration after 3 hours. What can you conclude from your answer? Time (Hours) 0 0.5 Concentration (mg/1) 1.5 2 2.5 78 100 84 50 16