# The function b(n)= 12n represents the number of baseballs b(n) that are needed for n games. How many baseballs are needed for 15 games?

$180$
$\text{substitute n = 15 into } b \left(n\right)$
$b \left(\textcolor{red}{15}\right) = 12 \times \textcolor{red}{15} = 180$