Arithmetic, Sum of Arithmetic and Sigma Notation

The sequence 28, 34, 40, 46, 52, ..., 88 has 11 terms. Find the sum of the 11 terms.

• 550

• 638

• 610

• 288

Find the sum of all positive numbers divisible by 9 and smaller than 100.

• 540

• 495

• 594

• 450

If a₁ = 5, and a₁₀ = 68 , what is S₁₀?

• 360

• 363

• 362

• 365

What is the sum of all the odd integers between 8 and 26?

• 153

• 149

• 151

• 148

Find the sum of the odd numbers from 1 to 100.

• 2,500

• 10,000

• 5,000

• 1,250

Is the sequence arithmetic: 17, 9, 1, -7, ...

• Yes

• No

Determine the sum of the series written in Sigma Notation. 

• -341

• -279

• -250

• -431

Determine the sum of the series written in Sigma Notation. 

• -590

• -290

• -293

• -295

Determine the sum of the series written in Sigma Notation. 

• 1091

• 270

• 540

• 1098

Determine the sum of the series written in Sigma Notation. 

• -1

• 255

• 295

• 350