zcarter10 zcarter10 10-05-2018 Mathematics contestada HURRY IM TIMED!!!!! Determine the common ratio and find the next three terms of the geometric sequence. 8, -20, 50, a. -2.5; -125, 312.5, -781.25 c. 2.5; -125, 312.5, -781.25 b. -2.5; -70, 240.6, -642.85 d. 2.5; -70, 240.6, -642.85