A Telephone Number Consists of a Sequence of Seven Digits

question 92

Short Answer

A telephone number consists of a sequence of seven digits not starting with a 0 or a 1. How many phone numbers begin with either 764, 768, or 788

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Definitions:

Demand for Cream

The consumer interest and willingness to purchase cream, influenced by culinary trends, diet preferences, and availability of substitute products.

Demand Curve

A graph representing the relationship between the quantity of a good desired and its price.

Price

is the amount of money expected, required, or given in payment for something.

Change in Demand

A shift in the quantity of a product or service that consumers are willing and able to buy at various prices, due to factors like changes in consumer preferences, income, or the prices of related goods.