1.What is the sum of a 6-term geometric series if the first term is 21 and the last term is 1,240,029?

2.What is the sum of a 58-term arithmetic sequence where the first term is 6 and the last term is 405?

3.Brett has been studying a type of bacteria that doubles every month. Originally, there were 5 bacterial cells. He wants to know how many there will be after 42 months. Which equation should he use?

4.What is the 32nd term of the arithmetic sequence where a₁= 34 and a₉= 122?

5.Given the geometric sequence where a₁= 1 and the common ratio is 6, what is the domain for n?

6.What is the 7th term of the geometric sequence 4, 20, 100, ?

7.What is the sum of the geometric sequence 1, 6, 36, if there are 6 terms?

8.What is the 32nd term of the arithmetic sequence where a₁= 14 and a₁₃= 58?