A unit rate is a rate in which the first quantity / second quantity in the comparison is one unit. (choose the correct option)

Step 1: Define the Problem

Identify the correct definition of a unit rate from the given options.

Step 2: Break Down the Problem

Understand what a unit rate is and how it is typically expressed.

Step 3: Apply Relevant Concepts

A unit rate is a comparison of two different quantities where the second quantity is one unit. It is often used to express rates like speed (miles per hour), price (cost per item), etc.

Step 4: Analysis, Verify and Summarize

Review the options provided to determine which one correctly describes a unit rate.

Final Answer

A unit rate is a rate in which the second quantity in the comparison is one unit.