400
9. For each of the following sequences
a. Write the next three terms
b. Describe whether it is arithmetic, geometric or neither
c. If it is arithmetic find the common difference. If it is geometric find the common ratio.
D. 5/4, 5, 20, 80, …
E. 4, 5, 7, 10 . . .
D.
a. 320, 1280, 5120
b. Geometric
c. r = 4
E.
a. 14, 19, 25
b. Neither
c. N/A