Arithmetic Sequence Sum and Finding

Calculate the sum of the 100th term and 200th term of the sequence 6, 15, 24, 33, ... ...

Find the values of a in the following arithmetic sequence

5, 9, a, 17, 21

Find the values of a in the following arithmetic sequence

1, 6, a, 16, 21

Find the nth term of the following sequence

7, 9, 11, 13, 15

Find S_n for the given series:
a₁=22
d=-8
n=21

• 1911

• -1449

• -2436

• -1218

Which term in the sequences below is the first to be greater than 250?

• 9, 13, 17, 21, ... ...

• 2, 10, 18, 26, ... ...

• 1, 7, 13, 19, ... ...

Calculate the difference between the 10th term and 50th term of the sequence 9, 14, 19, 24, ... ...

What is the 50 term in the sequence 1, 7, 13, 19 …?

What is the 7th term in the sequence 7, 11, 15, … ?

• 30

• 31

• 32

• 33

What is the common difference inthe sequence -7, -5, -3, -1, … ?

• 1/2

• -1/2

• 2

• -2