Find the Sum of the First 13 Terms of the Arithmetic

question 17

Multiple Choice

Find the sum of the first 13 terms of the arithmetic progression: 3, - 4, - 11,... ​

• A) - 39
• B) - 500
• C) - 507
• D) - 1,521

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Definitions:

Quantity Demanded

The total amount of a good or service that consumers are willing and able to purchase at a given price level in a given period.

Pepsi

A global beverage brand known for producing cola and a variety of other soft drinks and products.

Complementary Goods

Products or services that are used together, thereby the demand for one is increased when the price of the other is decreased, exemplifying a direct relationship between price and demand of different goods.

Cross-Price Elasticity

A measure of how the quantity demanded of one good responds to a change in price of another good, indicating substitutability or complementarity between products.