Answer
At 3 months, Jonah weighs 2 pounds more than average.
At 6 months, Jonah weighs 2 pounds more than average. In general, Jonah weighs 2 pounds more than average for babies of his age.
Work Step by Step
At $t=3$ months, Jonah's weight is
$$
V=s(3)+2
$$
Since $s(3)$ is the average weight of a 3 -month old boy, we see that at 3 months, Jonah weighs 2 pounds more than average. Similarly, at $t=6$ months we have
$$
V=s(6)+2
$$
which means that, at 6 months, Jonah weighs 2 pounds more than average. In general, Jonah weighs 2 pounds more than average for babies of his age.
