Your friend enters a contest to see how many seconds they can stay standing on on a beam without falling off. The first day they stand 2 seconds. Each day after the first, they stand twice as long. How many days is it until they can stand more than 1/2 hour?​

Determine the common ratio and find the next three terms of the geometric sequence. 10, 2, 0.4, a. 0.2; -0.4, -2, -10 c. 0.02; 0.08, 0.016, 0.0032 b. 0.02; -0.4, -2, -10 d. 0.2; 0.08, 0.016, 0.0032 select the best answer from the choices provided a b c d