Hi there! :) The answer of your question is 0.32 or 32%. I got the answer because I divided 92/280=0.32. I hope this is the right answer.
Hope I helped! :D
∑[1/(3^(n-1))] represents the series 1+1/3+1/9+1/27+1/81+1/243 using sigma notation. I am hoping that this answer has satisfied your query and it will be able to help you in your endeavor, and if you would like, feel free to ask another question.
Answer: The correct answer is 20-4+2
