Consider the following cash flow: A1=900,A2=1100,A3=1300,A4=1500 What type of gradient series is this? Negative increasing Positive increasing Positive decreasing Negative decreasing What is the value of base amount? Define an equal payment series of three cash flows over the time period [2,4]. What would be the value of A ? Round to the nearest dollar. Consider the following cash flow: A1=900,A2=1100,A3=1300,A4=1500 What type of gradient series is this? Negative increasing Positive increasing Positive decreasing Negative decreasing What is the value of base amount? Define an equal payment series of three cash flows over the time period [2,4]. What would be the value of A ? Round to the nearest dollar