do all plz

Q3: Assume interest rate is 2% for all the following questions. Question 9 6 pts = Consider the following cash flow series: A1 = 1000, A2 = 1200, A3 = 1400, A4 1600, A5=1800. What type of gradient series is this? O Positive increasing Positive decreasing Negative increasing O Negative decreasing Question 10 8 pts Compute the value of the cash flow described in the previous question at t = 5. Question 11 6 pts Consider the following cash flow series: A1 = -1000, A2 = -1200, A3 = -1400, A4 = -1600. What are the values of the base amount and for this cash flow? 0-1000, 200 -1000, -200 O-1600, 200 O-1600, -200 Question 12 8 pts With the same cash flow series as last question, define an equal payment series of three cash flows over the time period [2, 4]. What would be the value of A