Answer:
4
Step-by-step explanation:
The baseballs are manufactured in groups of 4 together.
And, in stores baseballs are sold in a package of 3 baseballs.
So, 3/4 of one group from the factory is used to make one store package.
Then, 1 group from the factory is used to make 4/3 store packages.
{Simply by using the unitary method,}
Therefore, 3 factory groups are used to make [tex]\frac{4*3}{3}[/tex] =4 store packages. (Answer)