Answer:
The best buy is the lest one, for 9 cents an item.
Step-by-step explanation:
For this problem you must find the unit rate for each item. To find that, you fo price divided by quantity.
First one: .9/6 = .15. So $0.15 an item
Second one: 1.1/10 = .11. So $0.11 an item
Third one: 1.44/16 = .09. So $.09 an item.