Geometric Sequences and Series Determine the common ratio and End the west thing beras of tart peometric sequence. 1. - 1,2 -hme 5 Write an explicit formula and a recursive formula hor de wod kira of each geometric sequence. 3. 2, 10,50,.. Find the specified term for each geometric sequence or sgames with the given characteristics. 5. a, for 20, 0.2, 0.002, . 7. a, for a, = 28, r =2