1x20=20 i/y=>1=> O |N= PV= PMT= 5,000 FV= N= i/y= PV= PMT= FV= 219,320.08 b) Switch the timing of the payments. Iris learned that she could increase her total earnings if she makes her annual contribution at the beginning of the year rather than at the end. Switch the payments to be made at the BEGINNING of each period and then recalculate the amount of the annuity. Explain: 1a. $ 1b. N= i/y= PV= PMT= FV= Why does making a contribution at the beginning of a period earn more interest than at the end? c) HINT: Think about the interest earned during the first period. $ Show work here: Question Dante Ryan is currently 50 years old. He plans to contribute $5,000 to his Roth IRA at the END of a) each year for 15 years, when he will retire at 65. write: 7/1=7 (do not include a %) Compute the future value of the annuity if this account returns 7.25%, compounded annually. 2a. Remember to enter payment as a negative amount! $ 2b. $ b) Compute how much interest he earned during the 15-year term. Remember to show 5 decim