Arithmetic and Geometric Sequences and Series

Is this sequence arithmetic, geometric, or neither?
{26, 22, 18, 14, ...}

• Arithmetic

• Geometric

• Neither

Find the sum of the first 25 terms of the series: 6+14+22+30+...

• 450

• 2650

• 2550

• 550

Find the sum of the first 718 terms for the series

2 + 4 + 6 + ... + 1436

• 1,797

• 116,236

• 321,704

• 516,242

What kind of sequence is illustrated below?
 400, 200, 100, 50, 25, ...

• Arithmetic

• Geometric

• Neither

The graph of a geometric sequence is ​ (a)   .

• exponential

• Linear

• quadratic

Which kind of sequence has a common difference?

• Arithmetic

• Geometric

What is the 8th term in the sequence below?
3, 9, 27, 81, ...

• 19,683

• 6,561

• 2,187

• 729

Evaluate the Arithmetic Series

• 105

• 210

• 100

• 420

Find the sum of the infinite geometric series, if it exists:

5 + 4 + 3.2 + 2.56 + ...

• 25

• 5

• -1

• 0.8

What is the sum of the first 10 terms for the following geometric series:
2-6+18-54+...

• 59048

• -29524

• 524288

• 3069