Arithmetic Sequences

What is the eleventh term of an arithmetic sequence in which a1 = 3 and d = 6?

Given the sequence 2, 8, 14, 20, 26, ... What is the common difference?

How many of these sequences have a common difference of -4?

What number follows 20 in this arithmetic sequence?

8,11, 14, 17, 20

Figure out the pattern and add the missing number in the sequence

3, 6, (a)   , 12, 15

Figure out the pattern and add the next number in the sequence

4, 8, 12, 16, 20, (a)  

Figure out the pattern and add the next number in the sequence

2, 4, 6, 8, 10, (a)  

Figure out the pattern and add the missing number in the sequence

3, 6, 9, 12, (a)  

Figure out the pattern and add the missing number in the sequence

5, 10, 15, 20, (a)  

Figure out the pattern and add the missing number in the sequence (a)   , 10, 15, 20, 25