Question

Which of the following choices is not an example of a unit rate?

miles per gallon

blinks per second

12 cans for $9.99
cost per item

Answer 1

12 cans for $9.99 is not an example of a unit rate. Unit rates involve a single unit of one quantity per one unit of another quantity, like miles per gallon or blinks per second. In the case of 12 cans for $9.99, it's a total cost for a specific quantity, not a rate per unit.