Answer:
either 258 lbs or 30 lbs, please see below
Step-by-step explanation:
In order to find the answer, you should make an equation.
21.5 lbs* 12 months=258 lbs that year.
(sorry please specify whether it's 21.5 or 2.5 lbs per month)
or if it's 2.5 lbs* 12 months = 30 lbs that year
