a) Use 2 as your starting exponent 3 is the base of all exponents 6 is the maximum exponent b) Recognize a Growth Pattern because , as described in the sigma notation : 22-2+1=21. Starting at the second term and going up to the 22nd term Add the 1 due to inclusion of the 2nd term is a Finite Geometric Series Use sum of a geometric series formula Infinite Growth Pattern and