Arithmetic Sequence

What is the next number in the sequence: 2, 5, 8, 11?

Find the missing number: 4, 16, 25, 36

In the sequence 3, 8, 13, and 18, what is the common difference?

If the common difference in an arithmetic sequence is 7 and the first term is 3, what is the 12th term?

The nth term of an arithmetic sequence is a 2n+5. What is the 20th term?

It is a set of things (usually numbers) that are in order.

(a)  

The difference between one term and the next is a constant. What am I?

(a)  

In the sequence 1, 4, 9, 16,..., what operation is being performed on each term?

(a)  

What do you call each number in the sequence? Sometimes called "elements" or "members"

(a)  

Find the missing number: 2, 6, 12, 20

(a)