Which of the following represents the sum of the sequence
6, 12, 20, 30 ?

3.

Which choice represents 3 + 6 + 9 + 12 + ...
for 28 terms ?

Choose:

4.

Which choice represents:

Choose:

5.

Evaluate:
Choose:

6.

Which choice represents the sum:
7 + 14 + 21 + 28 + ... + 105 ?

Choose:

7.

Evaluate:

Choose:

8.

Find the third term in the summation:

Choose:

9.

Are these two summation expressions equal?

10.

Certain summations can be expressed as a single expression. Which expression is equivalent to the summation ?

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