Answer:
3 3/4 Ft.
Explanation:
So right now he is 3 1/2 ft tall.
Next year he will be 1/4 ft taller.
This means that we have to add them up.
First, we convert 3 1/2 to 3 2/4.
Now we add because the addends have the same denominators.
We get 3 3/4 Ft.
Hope this helps you out!