Question

Which is better buy, 3 pounds for $8.31 or 5 pounds for 12.95

Answer 1

3 pounds for $8.31, because the amount is cheaper

Answer 2

to find this answer you would divide the amount of money it cost by the amount you get.  doing this will get you the unit price

8.31/3=2.77

12.95/5=2.59

the better buy would be the 5 pounds for 12.95$