Verified answer

is n=1 the exponent of the 5? If so, the first term is 2/1 or 2. The next term is 4/5. The next term is

8/25. The common ratio is 2/5; so it converges. The first term is 2. Use the formula S=a1/1-r

and get 2/(1-2/5) which is 2/(3/5) or 2 times 5/3 which is 10/3.