Suppose a Plumber Charges $160 for the First Hour Plus $160 + 70 n$

question 219

Multiple Choice

Suppose a plumber charges $160 for the first hour plus $70 for each additional hour. Write an expression for the cost (in dollars) of a job lasting n hours.

• A) \(160 + 70 n\)
• B) \(160 + 70 ( n - 1 )\)
• C) \(160 \cdot 70 ^ { \mathrm { n } - 1 }\)
• D) \(230 \mathrm { n }\)

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Definitions:

Many Sellers

A market condition in which there are numerous providers of a good or service, contributing to competitive pricing and variety for consumers.

Monopolistic Competition

A market structure characterized by many firms selling products that are similar but not identical, allowing for competition based on quality, price, and brand.

Oligopoly

An oligopoly is a market structure in which a few firms dominate the industry, leading to limited competition.

Average Total Cost

Total cost divided by the quantity of output