To find the weight of Kristen's dog, you subtract the weight difference from Milo's dog's weight.
Milo's dog weighs 18.25 pounds, and Kristen's dog weighs 2.5 pounds less.
So, you can calculate it like this:
18.25 pounds - 2.5 pounds = 15.75 pounds
Therefore, Kristen’s dog weighs 15.75 pounds.