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Exercise # 2: Answer the following. Show your complete solutions. 1) What is the 9th term in the sequence 81, -27, 9, -3, ... ? 2) Which term is 48 in the sequence 3072, 1536, 768, ...? 3) Find the common ratio of the sequence if the first term is 5 and the 8th term is 640. 4) What term of the geometric sequence 3, 9, 27, 81, ... is greater that 500? 5) Given x is the first term of a geometric sequence and 4 is the common ratio, what is the 6th term in the sequence? the 16 or 33​