HELP PLEASE (Geometric Sequences) 15 points

1) Find the next three terms for the geometric sequence:

84035, 12005, 1715, 245, ...

Enter your answers as numbers separated by commas, like this: 42, 52, 62

If necessary, use the / symbol to indicate fractions, like this: 42, 52, 62/3



2) The third term of a geometric sequence is 4. The sixth term is -108. What is the first term?

Enter your answer as a number, like this: 42

Or as a fraction, like this: 42/15


3) In the geometric sequence shown, the common ratio is 4. Find the missing values.
..., a5, 24, a7, ...

A) a7 = 6
B) a5 = 96
C) a7 = 96
D) a5 = 6


4) Look at the following sequence: 5, 20, 80, 320, ...

Determine whether the sequence is geometric. If it is geometric, find its common ratio.

Enter your answer in one of two forms:

If your answer is yes, it is geometric and you found the value of r, enter it like this: yes, 42

If your answer is no, it is not geometric, enter it like this: no