Answer:
29.37%
Explanation:
Rate of return = Average annual income/Average initial investment
Average annual income = $3,700
Average initial investment = (I+s)/2
Average initial investment = (25,200+0)/2
Average initial investment = $12,600
Rate of return = $3,700/$12,600
Rate of return = 0.2936508
Rate of return = 29.37%