Answer :

Answer:

The unit rate is 36¢ per pen.

Step-by-step explanation:

To find the unit rate for a batch of items, divide the cost by the amount of items.

$90 / 250 pens = $0.36 / pen

So, if you bought 250 pens for $90, it would be 36 cents per pen.

This is an example of a proportional relationship. In a proportional relationship, the equation goes through the origin, and dividing the dependent value by its corresponding independent value always results in the same number. For more practice with proportional relationships, check out https://brainly.com/question/22677603.