How Many Sets of Emission Regulations Are Used in the US

question 4

Multiple Choice

How many sets of emission regulations are used in the US?

• A)1"
• B)2"
• C)3
• D)4"

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Definitions:

Division

A mathematical operation where one number (the dividend) is divided by another (the divisor), showing how many times the divisor fits into the dividend.

Division

A mathematical operation that represents dividing one number by another.

Polynomial

A mathematical expression consisting of variables and coefficients, that involves only the operations of addition, subtraction, multiplication, and non-negative integer exponents.

Factor

A number that divides another number exactly, without leaving a remainder, or the process of breaking down expressions into simpler components that can be multiplied together.