If a stock pays dividends at the end of each quarter, with realized returns of r1, r2, r3, and r4
each quarter, then the annual realized return is calculated as
a) rannual = (1 + r1) (1 + r2) (1 + r3)( 1 + r4) - 1
b) rannual = r1 + r2 + r3 + r4
c) rannual = (1 + r1) (1 + r2)( 1 + r3)( 1 + r4)
d) rannual =
r1 + r2 + r3 + r4
4

Your subscription to investing wisely weekly is about to expire. you plan to subscribe to the magazine for the rest of your life, and you can renew it by paying $85 annually, beginning immediately, or you can get a lifetime subscription for $620, also payable immediately. assuming that you can earn 6.0% on your funds and that the annual renewal rate will remain constant, how many years must you live to make the lifetime subscription the better buy?