Which of these is a unit rate?

A) 5 miles per hourB) 2 miles per hourC) 5 miles per gallonA unit rate is a rate where the second term is 1. This means that the rate is expressed as a quantity per unit of time or per unit of another quantity. Let's analyze each option: A) 5 miles per hour - This is a unit rate because the second term is 1 hour. B) 2 miles per hour - This is also a unit rate because the second term is 1 hour. C) 5 miles per gallon - This is a unit rate because the second term is 1 gallon. So, all three options (A, B, and C) are unit rates.