A unit price is a unit rate that tells us about the price of one item.
$ 0.40
Practice makes perfect
We know that 9 pens are priced at $3.60, and we want to know the unit price for each pen. Let's write this rate as a fraction.
$3.60/9Remember that a unit price is a unit rate that gives the price of one item. In other words, it is a rate that has been reduced to have a denominator of 1 unit. To find the unit rate, we write an equivalent rate with a denominator of 1. Here, we can divide both the numerator and the denominator of our fraction by 9.
