7,9,11,13......

A) arithmetic
B) geometric
C)both
D)neither

2. 2,1,1/2,1/4........

A. arithmetic
B. geometric
C. both
D. neither

Yes that is correct

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To determine whether a sequence is arithmetic or geometric, we need to examine the differences or ratios between consecutive terms.

For the first sequence 7, 9, 11, 13...:
- The difference between the terms is +2.
- Since the difference between consecutive terms is constant, the sequence is arithmetic.

For the second sequence 2, 1, 1/2, 1/4...:
- The ratio between the terms is 1/2.
- Since the ratio between consecutive terms is constant, the sequence is geometric.

Therefore, the answers are:
1. The first sequence is arithmetic, so the answer is A) arithmetic.
2. The second sequence is geometric, so the answer is B) geometric.

1 I THINK IS A AND LAST AND B