The equation after the sum symbol is written in terms of ar^k-1
A = 12 and r = 0.7
To see if it converges use the formula a /1-r, if the answer is greater than 1 it converges, if it’s less than 1 it diverges
12 / 1 - 0.7 = 12/0.3 = 40
The answer C. Converges, 40
