Answer:
Arithmetic: (4, 8, 12, 16, ...) (3, 8, 13, 18, ...)
Geometric: (2, 6, 18, 54, ...) (5, 10, 20, 40, ...)
Neither arithmetic or geometric: (5, 10, 20, 30, ...)
Step-by-step explanation:
Arithmetic sequences are sequences where all of the numbers have a common difference.
4, 8, 12, 16, ... all have a common difference of 4.
3, 8, 13, 18, ... all have a common difference of 5.
Geometric sequences are sequences where all of the numbers have a common ratio.
2, 6, 18, 54, ... all have a common ratio of 3.
5, 10, 20, 40, ... all have a common ratio of 2.
Sequences that are neither arithmetic or geometric do not have common differences or common ratios.
5, 10, 20, 30, ... does not have a common difference or a common ratio
