Answer:
year 1................... (0.15)50
year 2................. (0.15)(0.15)50
year 3................. (0.15)(0.15)(0.15)50
year n................. 50(0.15)ⁿ
when the next term is simply obtained by multiplying the current one by some multiplier, is a geometric sequence.
Explanation:
Arithmetic sequence