7. John has purchased 20 books. The 1″ book costs Php 100, the 2nd Php 200, the 3 Php 400, and the, 4ch Php 800, and so on. What is the common ratio in this sequence?, AI, B. 2, D. 4, 8 Which of the following is/are needed to find the nth term of a geometric sequence?, A first term, C. number of terms, B common ratio, D. A, B, C, What is the common ratio of a geometric sequence if the first term is 5 and the fifth term is 80?, A1, C. 3, D. 4, 10. What is m in the sequence 8, m, 32?, A 2, B 10, C. 16, D. 24, 11. The sum of the first five terms of a geometric sequence is 341. The fifth term is 256 and the common, ratio is 4. What must be the first term of this sequence?, A 1, C. 8, B. 4, D. 16, 12. Situation: In a certain apartment, 20 people live on the first floor of the building, 34 people on the, second floor, 48 people on the third floor, and so on., Which of the following is true about the situation?, A. It is an arithmetic sequence because it has a common difference of 14., B. It is a geometric sequence because it has a common ratio of one-half., C. It is both arithmetic and geometric sequence., D. Neither arithmetic nor geometric., 13. Find a, in the geometric sequence described by the formula an = 5n-1, A. 625, C. 15625, B. 3125, D. 78125, 14. Insert three geometric means between 36 and 46656., A. 206,1096, 6046, C. 226, 1996, 8086, B. 216, 1296,7776, D. 246, 2066, 8096