Final answer:
The correct answer is b) Summation. To find a formula for a sequence of numbers, you can use summation notation.
Step-by-step explanation:
The correct answer is b) Summation.
To find a formula for a sequence of numbers, you can use summation notation. Summation is a mathematical operation that calculates the total of a sequence of numbers. It involves adding up all the terms in the sequence. By using summation, you can express the sequence in a more concise and general form.