arithmetic and geometric sequences and series

Evaluate the series.

• 36
• 85
• 35
• 86

Find the sum for the following series. 

• 1.49
• 3.14
• 1.33
• 1.66

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

• Arithmetic
• Geometric
• Neither

Determine whether the sequence could be geometric or arithmetic:

6, 10, 15, 21, ...

• Geometric with r = 5/3

• Arithmetic with d = 4

• Geometric with r = 4

• Neither

Is the sequence 2, 4, 12, 48,... geometric?

• yes
• no

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

5 + 4 + 3.2 + 2.56 + ...

• 25

• 5

• -1

• 0.8

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

• 450

• 2650

• 2550

• 550

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

• Arithmetic
• Geometric
• Neither

Find the sum of the first 718 terms for the series

2 + 4 + 6 + ... + 1436

• 1,797

• 116,236

• 321,704

• 516,242

Which kind of sequence has a common difference?

• Arithmetic
• Geometric