Understanding and applying arithmetic series

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Find the sum of the first 12 terms of the arithmetic series $3.4+5.2+7+8.8\ ...\$  

• 159.6

• 170.4

• 139.2

• 473.28

The sequence 28, 34, 40, 46, 52, ..., 88 has 11 terms. Evaluate the related series. 

• 550
• 638
• 610
• 288

Determine a sum of a given finite AR sequence:

S₅₀₀ = 1 + 3 + 5 + …. + 997 + 999

(a)  

Evaluate the arithmetic series given the following:  $a_1=42,\ a_n=146,\ n=14$ .

• 1315

• 1316

• 1314

• 1313

Find the sum:  11 + 12 + 13 + ... + 40

• 791
• 765
• 76
• 739.5

Evaluate each arithmetic series described using the sum formula.

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• B

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• D

Find the sum: $\sum_{p=1}^{28}4p-2$  

• 14

• 420

• 870

• 1568

Given the sequence below, find $S_{19}.$  

 $\left\{30,\ 23,\ 16,\ 9,\ 2,\ ...\right\}$  

•  $-627$  

•  $-352$  

•  $514$  

•  $-1251$  

Evaluate the Arithmetic Series

• 105

• 210

• 100

• 420