<span>88.80625 is the answer because I used a calculator.</span>
Ex. 85+91= 176
176 divided by 2 = 88
Therefore the minimum score he can get is a 91
There is no sum for this geometric series. it diverges rather than converges due to the absolute value of the common ratio (r), which is -3, being 3. for a geometric series to have a sum (to converge), the absolute value of r must be less than 1.
(you find r by dividing a2/a1, a3/a2, etc.)
hope this helps
