Please I need help please someone

Answer:
National Stationary
Step-by-step explanation:
The objective here is to find which shop has a better unit rate. We can just divide the total cost of the books by the number of books brought.
Readmore bookshop unit rate is
[tex] \frac{60}{4} = 15[/tex]
while National Stationary unit rate is
[tex] \frac{75}{6} = 12.5[/tex]
Since National Stationary unit rate is smaller, it has a better offer.