Is the sequence 5, 10, 17, 26, 37 arithmetic, geometric or neither?

Is the sequence 12, 5, -2, -9, -16 arithmetic, geometric or neither?

Is the sequence 16, 24, 36, 54, 81 arithmetic, geometric or neither?

The sequence 3, -1, -5, -9 is arithmetic. What is its common difference?

The sequence 64, 25.6, 10.24, 4.096 is geometric. What is its common ratio, written as a reduced fraction?

The terms of a sequence are given by $a_n=1-5n$. Is the sequence arithmetic, geometric or neither?

Is the sequence 4, 7, 11, 18, 29 arithmetic, geometric or neither?

Is the sequence 12, 3, -6, -15, -24 arithmetic, geometric or neither?

Is the sequence 20, 26, 32, 38, 44 arithmetic, geometric or neither?

The terms of a sequence are given by $a_n=n^2+7$. Is the sequence arithmetic, geometric or neither?

Is the sequence -14, -23, -32, -41, -50 arithmetic, geometric or neither?

The sequence 80, 32, 12.8, 5.12 is geometric. What is its common ratio, written as a reduced fraction?

Is the sequence 20, 23, 26, 29, 32 arithmetic, geometric or neither?

Is the sequence 3, 4, 7, 11, 18 arithmetic, geometric or neither?

Is the sequence 9, 17, 25, 33, 41 arithmetic, geometric or neither?

The sequence -5, 4, 13, 22 is arithmetic. What is its common difference?

The terms of a sequence are given by $a_n=n^2+1$. Is the sequence arithmetic, geometric or neither?

Is the sequence 128, -64, 32, -16, 8 arithmetic, geometric or neither?

The terms of a sequence are given by $a_n=11-6n$. Is the sequence arithmetic, geometric or neither?

Is the sequence 6, 13, 22, 33, 46 arithmetic, geometric or neither?