Me *welp

which of the following is not an arithmetic sequence?

1/2, 1,3/2,

11,14,17,20

5,2,-1,-4

2,4,8,16

a geometric sequence begins with the value 1 and has a common ratio of -2. identify the eighth term in the sequence.

-128
-256
256
128

a geometric sequence begins with the value 2 and has a common ratio of 1/2 identify the fifth term in the sequence.

1/16

4

1/8

1/4

which of the following is a false statement about the sequence 2, 4, 8, 16,

a. the tenth term of the sequences is 2^10

the common ratio of the sequence is 2.
c
the number 216 appears in the sequence.
d
every term of the sequence is even.