Use the formula to evaluate the series 6+2+2/3+2/9

If you're talking about adding just these four terms, notice that









If you were referring to an infinite sum, so that the pattern continues, note that the same procedure as above can be applied to the th partial sum:





Then as , the exponential term approaches 0, leaving you with

Ais the correct answer

Well if you have 20 bats you probably want 20 balls? you don’t have enough context to answer the question.