Answer :- 180 baseballs are needed for 15 games.
Explanation:-
Given function :- b(n)=12n representing the the number of baseballs,
where n is the number of games.
If the number of games = 15 games
Then the number of baseballs needed for 15 games= b(15) [Substitute n=15 in the given function]
= 12(15)=180
Therefore, 180 baseballs are needed for 15 games.