Respuesta :

9 years older because 18 months is equal to 1 1/2 years and 10 1/2 minus 1 1/2 is 9
amyricheson07

Answer:

9 Years

Step-by-step explanation:

Paige's dog is 1 1/2 years old, so subtract 10 1/2 by 1 1/2 to get an answer of 9 years.