1. Consider a series of end-of-period CFs spanning 2042-2059, which increase by a fixed amount each period. The amount of the first CF in the series is $126 and the increment is $53. The interest rate is 3.0%. What is the equivalent value of this series at the beginning of 2042?

2. Consider a series of end-of-period CFs spanning 2046-2055, which decrease by a fixed amount each period. The amount of the first CF in the series is $71 and the decrement is $71. The interest rate is 3.5%. What is the equivalent value of this series at the end of 2055?

3. Consider a series of end-of-period CFs spanning 2042-2051, which decrease at a 0.6% rate each period. The amount of the first CF in the series is $140. The interest rate is 2.1%. What is the equivalent value of this series at the end of 2051?