A professsionl society whoes dues are normally $100 per year is offering life memebrships for $1,250. assume you are a young engineer of 24, considering the life memebership offer. if you stay active in the society until age 65 (41 years), what rate of return will the investment in life yield.
(a) compared to the $100-per-year membership dues paid in advance, with the first year's dues payable right now?
(b) compared to the $100-per-year membership with dues paid in advance, but where the dues are expected to increase by $5 per year every year ($100 the first year,$105 the seocnd, etc)?