Use the nth term/formula of a geometric sequence to answer the following questions. 1. What is the 5th term of the geometric sequence 3/20, 3/2, 15,…? * 2 points 2. In the geometric sequence 6, 12, 24, 48, … which term is 768? * 2 points 3. The second term of a geometric sequence is 3/4 and its fourth term is 3. What is the first term?​