Respuesta :

iguanamiyagi

Answer:

5 books for $12

Step-by-step explanation:

BEST buy means cheapest per item!

5 books for $12, means 1 book = 12/5 = 2.4

4 books for $10, means 1 book = 10/4 = 2.5

Conclusion: 5 books for $12 is a better buy, since it's cheaper per book!