Solve the Problem. -The Average Height of a Boy in the United States

question 43

Multiple Choice

Solve the problem.
-The average height of a boy in the United States, from birth through 60 months, can be modeled by y = 2.9x + 20.1 where y is the average height, in inches, of boys who are x months of age. What would be the expected difference in height between a child 25 months of age and a child 16 months of age?

• A) 43.1 in.
• B) 14.5 in.
• C) 4.9 in.
• D) 2.9 in.

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Definitions:

Trade

Trade is the action of buying, selling, or exchanging goods and services between people, companies, or countries.

Competition

The rivalry among sellers trying to achieve goals such as increasing profits, market share, and sales volume by varying the elements of the marketing mix: price, product, promotion, and place.

Bulgaria

A country located in Southeast Europe known for its rich history, cultural heritage, and geographical diversity.

Invisible Hand

A term used by Adam Smith to describe the self-regulating nature of the marketplace.